| IATA |
ICAO |
Airport name |
Location served |
Time |
DST |
|---|
| -CA- |
| CAA | MHCA | Catacamas Airport | Catacamas, Honduras | UTC−06:00 | |
| CAB | FNCA | Cabinda Airport | Cabinda, Angola | UTC+01:00 | |
| CAC | SBCA | Cascavel Airport (Adalberto Mendes da Silva Airport) | Cascavel, Paraná, Brazil | UTC−03:00 | Oct-Feb |
| CAD | KCAD | Wexford County Airport | Cadillac, Michigan, United States | UTC−05:00 | Mar-Nov |
| CAE | KCAE | Columbia Metropolitan Airport | Columbia, South Carolina, United States | UTC−05:00 | Mar-Nov |
| CAF | SWCA | Carauari Airport | Carauari, Amazonas, Brazil | UTC−05:00 | |
| CAG | LIEE | Cagliari Elmas Airport | Cagliari, Sardinia, Italy | UTC+01:00 | Mar-Oct |
| CAH | VVCM | Cà Mau Airport | Cà Mau, Vietnam | UTC+07:00 | |
| CAI | HECA | Cairo International Airport | Cairo, Egypt | UTC+02:00 | |
| CAJ | SVCN | Canaima Airport | Canaima, Venezuela | UTC−04:30 | |
| CAK | KCAK | Akron-Canton Airport | Akron / Canton, Ohio, United States | UTC−05:00 | Mar-Nov |
| CAL | EGEC | Campbeltown Airport / RAF Machrihanish | Campbeltown, Scotland, United Kingdom | UTC±00:00 | Mar-Oct |
| CAM | SLCA | Camiri Airport | Camiri, Bolivia | UTC−04:00 | |
| CAN | ZGGG | Guangzhou Baiyun International Airport | Guangzhou, Guangdong, China | UTC+08:00 | |
| CAO | KCAO | Clayton Municipal Airpark | Clayton, New Mexico, United States | UTC−07:00 | Mar-Nov |
| CAP | MTCH | Hugo Chávez International Airport | Cap-Haïtien, Haiti | UTC−05:00 | Mar-Nov |
| CAQ | SKCU | Juan H. White Airport | Caucasia, Colombia | UTC−05:00 | |
| CAR | KCAR | Caribou Municipal Airport | Caribou, Maine, United States | UTC−05:00 | Mar-Nov |
| CAS | GMMC | Anfa Airport | Casablanca, Morocco | UTC±00:00 | Mar-Oct1 |
| CAT | LPCS | Cascais Municipal Aerodrome[1] | Cascais, Portugal | UTC±00:00 | Mar-Oct |
| CAU | SNRU | Caruaru Airport (Oscar Laranjeiras Airport) | Caruaru, Pernambuco, Brazil | UTC−03:00 | |
| CAV | FNCZ | Cazombo Airport | Cazombo, Angola | UTC+01:00 | |
| CAW | SBCP | Bartolomeu Lysandro Airport | Campos dos Goytacazes, Rio de Janeiro, Brazil | UTC−03:00 | Oct-Feb |
| CAX | EGNC | Carlisle Lake District Airport | Carlisle, England, United Kingdom | UTC±00:00 | Mar-Oct |
| CAY | SOCA | Cayenne – Félix Eboué Airport | Cayenne, French Guiana | UTC−03:00 | |
| CAZ | YCBA | Cobar Airport | Cobar, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| -CB- |
| CBB | SLCB | Jorge Wilstermann International Airport | Cochabamba, Bolivia | UTC−04:00 | |
| CBC | | Cherrabun Airport | Cherrabun, Western Australia, Australia | UTC+08:00 | |
| CBD | VOCX | Car Nicobar Air Force Base | Car Nicobar, Andaman and Nicobar Islands, India | UTC+05:30 | |
| CBE | KCBE | Greater Cumberland Regional Airport | Cumberland, Maryland, United States | UTC−05:00 | Mar-Nov |
| CBF | KCBF | Council Bluffs Municipal Airport | Council Bluffs, Iowa, United States | UTC−06:00 | Mar-Nov |
| CBG | EGSC | Cambridge Airport | Cambridge, England, United Kingdom | UTC±00:00 | Mar-Oct |
| CBH | DAOR | Boudghene Ben Ali Lotfi Airport | Béchar, Algeria | UTC+01:00 | |
| CBI | | Cape Barren Island Airport | Cape Barren Island, Tasmania, Australia | UTC+10:00 | Oct-Apr |
| CBJ | MDCR | Cabo Rojo Airport | Pedernales, Dominican Republic | UTC−04:00 | |
| CBK | KCBK | Colby Municipal Airport (Shalz Field) | Colby, Kansas, United States | UTC−06:00 | Mar-Nov |
| CBL | SVCB | Tomás de Heres Airport | Ciudad Bolívar, Venezuela | UTC−04:30 | |
| CBM | KCBM | Columbus Air Force Base | Columbus, Mississippi, United States | UTC−06:00 | Mar-Nov |
| CBN | WICD | Penggung Airport (Cakrabuwana Airport) | Cirebon, Indonesia | UTC+07:00 | |
| CBO | RPMC | Awang Airport | Cotabato City, Philippines | UTC+08:00 | |
| CBP | LPCO | Coimbra Airport | Coimbra, Portugal | UTC±00:00 | Mar-Oct |
| CBQ | DNCA | Margaret Ekpo International Airport | Calabar, Nigeria | UTC+01:00 | |
| CBR | YSCB | Canberra Airport | Canberra, Australia | UTC+10:00 | Oct-Apr |
| CBS | SVON | Oro Negro Airport | Cabimas, Venezuela | UTC−04:30 | |
| CBT | FNCT | Catumbela Airport | Catumbela, Angola | UTC+01:00 | |
| CBU | EDCD | Cottbus-Drewitz Airport | Cottbus, Brandenburg, Germany | UTC+01:00 | Mar-Oct |
| CBV | MGCB | Cobán Airport | Cobán, Guatemala | UTC−06:00 | |
| CBW | SSKM | Campo Mourão Airport | Campo Mourão, Paraná, Brazil | UTC−03:00 | Oct-Feb |
| CBX | YCDO | Condobolin Airport | Condobolin, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CBY | | Canobie Airport | Canobie Station, Queensland, Australia | UTC+10:00 | |
| -CC- |
| CCB | KCCB | Cable Airport | Upland, California, United States | UTC−08:00 | Mar-Nov |
| CCC | MUOC | Jardines del Rey Airport | Cayo Coco, Cuba | UTC−05:00 | Mar-Nov |
| CCF | LFMK | Carcassonne Airport | Carcassonne, Languedoc-Roussillon, France | UTC+01:00 | Mar-Oct |
| CCG | | Crane County Airport (FAA: E13) | Crane, Texas, United States | UTC−06:00 | Mar-Nov |
| CCH | SCCC | Chile Chico Airfield | Chile Chico, Chile | UTC−03:00 | |
| CCI | SSCK | Concórdia Airport | Concórdia, Santa Catarina, Brazil | UTC−03:00 | Oct-Feb |
| CCJ | VOCL | Calicut International Airport | Kozhikode (Calicut), Kerala, India | UTC+05:30 | |
| CCK | | Cocos (Keeling) Islands Airport | Cocos (Keeling) Islands, Australia | UTC+06:30 | |
| CCL | YCCA | Chinchilla Airport | Chinchilla, Queensland, Australia | UTC+10:00 | |
| CCM | SBCM | Diomício Freitas Airport | Criciúma, Santa Catarina, Brazil | UTC−03:00 | Oct-Feb |
| CCN | OACC | Chaghcharan Airport | Chaghcharan, Afghanistan | UTC+04:30 | |
| CCO | SKCI | Carimagua Airport | Carimagua, Colombia | UTC−05:00 | |
| CCP | SCIE | Carriel Sur International Airport | Concepción, Chile | UTC−03:00 | |
| CCR | KCCR | Buchanan Field Airport | Concord, California, United States | UTC−08:00 | Mar-Nov |
| CCS | SVMI | Simón Bolívar International Airport | Caracas, Venezuela | UTC−04:30 | |
| CCT | | Colonia Catriel Airport | Catriel, Río Negro, Argentina | UTC−03:00 | |
| CCU | VECC | Netaji Subhas Chandra Bose International Airport | Kolkata, West Bengal, India | UTC+05:30 | |
| CCV | NVSF | Craig Cove Airport | Craig Cove, Ambrym Island, Malampa, Vanuatu | UTC+11:00 | |
| CCW | YCWL | Cowell Airport | Cowell, South Australia, Australia | UTC+09:30 | Oct-Apr |
| CCX | SWKC | Cáceres Airport | Cáceres, Mato Grosso, Brazil | UTC−03:00 | Oct-Feb |
| CCY | KCCY | Northeast Iowa Regional Airport | Charles City, Iowa, United States | UTC−06:00 | Mar-Nov |
| CCZ | MYBC | Chub Cay International Airport | Chub Cay, Berry Islands, Bahamas | UTC−05:00 | Mar-Nov |
| -CD- |
| CDA | YCOO | Cooinda Airport | Cooinda, Northern Territory, Australia | UTC+09:30 | |
| CDB | PACD | Cold Bay Airport | Cold Bay, Alaska, United States | UTC−09:00 | Mar-Nov |
| CDC | KCDC | Cedar City Regional Airport | Cedar City, Utah, United States | UTC−07:00 | Mar-Nov |
| CDD | | Cauquira Airport | Cauquira, Honduras | UTC−06:00 | |
| CDG | LFPG | Charles de Gaulle Airport (Roissy Airport) | Paris, Île-de-France, France | UTC+01:00 | Mar-Oct |
| CDH | KCDH | Harrell Field | Camden, Arkansas, United States | UTC−06:00 | Mar-Nov |
| CDI | | Cachoeiro de Itapemirim Airport (Raimundo de Andrade Airport) | Cachoeiro de Itapemirim, Espírito Santo, Brazil | UTC−03:00 | Oct-Feb |
| CDJ | SBAA | Conceição do Araguaia Airport | Conceição do Araguaia, Pará, Brazil | UTC−03:00 | |
| CDK | KCDK | George T. Lewis Airport | Cedar Key, Florida, United States | UTC−05:00 | Mar-Nov |
| CDL | | Candle 2 Airport (FAA: AK75) | Candle, Alaska, United States | UTC−09:00 | Mar-Nov |
| CDN | KCDN | Woodward Field | Camden, South Carolina, United States | UTC−05:00 | Mar-Nov |
| CDO | FACD | Cradock Airport | Cradock, South Africa | UTC+02:00 | |
| CDP | VOCP | Kadapa Airport | Kadapa, Andhra Pradesh, India | UTC+05:30 | |
| CDQ | YCRY | Croydon Airport | Croydon, Queensland, Australia | UTC+10:00 | |
| CDR | KCDR | Chadron Municipal Airport | Chadron, Nebraska, United States | UTC−07:00 | Mar-Nov |
| CDS | KCDS | Childress Municipal Airport | Childress, Texas, United States | UTC−06:00 | Mar-Nov |
| CDT | LECS | Castellón–Costa Azahar Airport | Castellón de la Plana, Valencia, Spain | UTC+01:00 | Mar-Oct |
| CDU | YSCN | Camden Airport | Camden, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CDV | PACV | Merle K. (Mudhole) Smith Airport | Cordova, Alaska, United States | UTC−09:00 | Mar-Nov |
| CDW | KCDW | Essex County Airport | Caldwell, New Jersey, United States | UTC−05:00 | Mar-Nov |
| CDY | RPMU | Cagayan de Sulu Airport | Mapun, Philippines | UTC+08:00 | |
| -CE- |
| CEA | KCEA | Cessna Aircraft Field | Wichita, Kansas, United States | UTC−06:00 | Mar-Nov |
| CEB | RPVM | Mactan–Cebu International Airport | Lapu-Lapu, Philippines | UTC+08:00 | |
| CEC | KCEC | Del Norte County Airport (Jack McNamara Field) | Crescent City, California, United States | UTC−08:00 | Mar-Nov |
| CED | YCDU | Ceduna Airport | Ceduna, South Australia, Australia | UTC+09:30 | Oct-Apr |
| CEE | ULWC | Cherepovets Airport | Cherepovets, Vologda Oblast, Russia | UTC+03:00 | |
| CEF | KCEF | Westover Metropolitan Airport / Westover Air Reserve Base | Springfield, Massachusetts, United States | UTC−05:00 | Mar-Nov |
| CEG | EGNR | Hawarden Airport (Chester Airport) | Chester, England, United Kingdom | UTC±00:00 | Mar-Oct |
| CEH | FWCD | Chelinda Airport | Chelinda, Malawi | UTC+02:00 | |
| CEI | VTCT | Chiang Rai International Airport (Mae Fah Luang Int'l) | Chiang Rai, Thailand | UTC+07:00 | |
| CEK | USCC | Chelyabinsk Airport | Chelyabinsk, Chelyabinsk Oblast, Russia | UTC+05:00 | |
| CEM | PARL | Central Airport | Central, Alaska, United States | UTC−09:00 | Mar-Nov |
| CEN | MMCN | Ciudad Obregón International Airport | Ciudad Obregón, Sonora, Mexico | UTC−07:00 | |
| CEO | FNWK | Waco Kungo Airport | Waku-Kungo, Angola | UTC+01:00 | |
| CEP | SLCP | Concepción Airport | Concepción, Bolivia | UTC−04:00 | |
| CEQ | LFMD | Cannes – Mandelieu Airport | Cannes, Provence-Alpes-Côte d'Azur, France | UTC+01:00 | Mar-Oct |
| CER | LFRC | Cherbourg – Maupertus Airport | Cherbourg-Octeville, Lower Normandy, France | UTC+01:00 | Mar-Oct |
| CES | YCNK | Cessnock Airport | Cessnock, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CET | LFOU | Cholet Le Pontreau Airport | Cholet, Pays de la Loire, France | UTC+01:00 | Mar-Oct |
| CEU | KCEU | Oconee County Regional Airport | Clemson, South Carolina, United States | UTC−05:00 | Mar-Nov |
| CEV | KCEV | Mettel Field | Connersville, Indiana, United States | UTC−05:00 | Mar-Nov |
| CEW | KCEW | Bob Sikes Airport | Crestview, Florida, United States | UTC−06:00 | Mar-Nov |
| CEX | | Chena Hot Springs Airport (FAA: AK13) | Chena Hot Springs, Alaska, United States | UTC−09:00 | Mar-Nov |
| CEY | KCEY | Murray-Calloway County Airport | Murray, Kentucky, United States | UTC−06:00 | Mar-Nov |
| CEZ | KCEZ | Cortez Municipal Airport | Cortez, Colorado, United States | UTC−07:00 | Mar-Nov |
| -CF- |
| CFB | SBCB | Cabo Frio International Airport | Cabo Frio, Rio de Janeiro, Brazil | UTC−03:00 | Oct-Feb |
| CFC | SBCD | Caçador Airport | Caçador, Santa Catarina, Brazil | UTC−03:00 | Oct-Feb |
| CFD | KCFD | Coulter Field | Bryan, Texas, United States | UTC−06:00 | Mar-Nov |
| CFE | LFLC | Clermont-Ferrand Auvergne Airport | Clermont-Ferrand, Auvergne, France | UTC+01:00 | Mar-Oct |
| CFF | FNCF | Cafunfo Airport | Cafunfo, Angola | UTC+01:00 | |
| CFG | MUCF | Jaime González Airport | Cienfuegos, Cuba | UTC−05:00 | Mar-Nov |
| CFH | | Clifton Hills Airport | Clifton Hills, South Australia, Australia | UTC+09:30 | Oct-Apr |
| CFI | YCFD | Camfield Airport | Camfield Station, Northern Territory, Australia | UTC+09:30 | |
| CFK | DAOI | Chlef International Airport | Chlef, Algeria | UTC+01:00 | |
| CFN | EIDL | Donegal Airport | Donegal, Ireland | UTC±00:00 | Mar-Oct |
| CFO | | Confresa Airport | Confresa, Mato Grosso, Brazil | UTC−04:00 | Oct-Feb |
| CFP | | Carpentaria Downs Airport | Carpentaria Downs, Queensland, Australia | UTC+10:00 | |
| CFQ | | Creston Aerodrome[1] (TC: CAJ3) | Creston, British Columbia, Canada | UTC−08:00 | Mar-Nov |
| CFR | LFRK | Caen – Carpiquet Airport | Caen, Lower Normandy, France | UTC+01:00 | Mar-Oct |
| CFS | YCFS | Coffs Harbour Airport | Coffs Harbour, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CFT | KCFT | Greenlee County Airport | Clifton / Morenci, Arizona, United States | UTC−07:00 | |
| CFU | LGKR | Corfu International Airport (Ioannis Kapodistrias Int'l Airport) | Corfu, Greece | UTC+02:00 | Mar-Oct |
| CFV | KCFV | Coffeyville Municipal Airport | Coffeyville, Kansas, United States | UTC−06:00 | Mar-Nov |
| -CG- |
| CGA | | Craig Seaplane Base | Craig, Alaska, United States | UTC−09:00 | Mar-Nov |
| CGB | SBCY | Marechal Rondon International Airport | Cuiabá, Mato Grosso, Brazil | UTC−04:00 | Oct-Feb |
| CGC | AYCG | Cape Gloucester Airport | Cape Gloucester, Papua New Guinea | UTC+10:00 | |
| CGD | ZGCD | Changde Taohuayuan Airport | Changde, Hunan, China | UTC+08:00 | |
| CGE | KCGE | Cambridge–Dorchester Airport | Cambridge, Maryland, United States | UTC−05:00 | Mar-Nov |
| CGF | KCGF | Cuyahoga County Airport | Cleveland, Ohio, United States | UTC−05:00 | Mar-Nov |
| CGG | | Casiguran Airport | Casiguran, Philippines | UTC+08:00 | |
| CGH | SBSP | São Paulo–Congonhas Airport | São Paulo, São Paulo, Brazil | UTC−03:00 | Oct-Feb |
| CGI | KCGI | Cape Girardeau Regional Airport | Cape Girardeau, Missouri, United States | UTC−06:00 | Mar-Nov |
| CGJ | | Kasompe Airport | Chingola, Zambia | UTC+02:00 | |
| CGK | WIII | Soekarno–Hatta International Airport | Jakarta, Indonesia | UTC+07:00 | |
| CGM | RPMH | Camiguin Airport | Mambajao, Philippines | UTC+08:00 | |
| CGN | EDDK | Cologne Bonn Airport | Cologne / Bonn, North Rhine-Westphalia, Germany | UTC+01:00 | Mar-Oct |
| CGO | ZHCC | Zhengzhou Xinzheng International Airport | Zhengzhou, Henan, China | UTC+08:00 | |
| CGP | VGEG | Shah Amanat International Airport | Chittagong, Bangladesh | UTC+06:00 | |
| CGQ | ZYCC | Changchun Longjia International Airport | Changchun, Jilin, China | UTC+08:00 | |
| CGR | SBCG | Campo Grande International Airport | Campo Grande, Mato Grosso do Sul, Brazil | UTC−04:00 | Oct-Feb |
| CGS | KCGS | College Park Airport | College Park, Maryland, United States | UTC−05:00 | Mar-Nov |
| CGT | | Chinguetti Airport | Chinguetti, Mauritania | UTC±00:00 | |
| CGV | YCAG | Caiguna Airport | Caiguna, Western Australia, Australia | UTC+08:00 | |
| CGY | RPMY | Laguindingan Airport | Cagayan de Oro, Philippines | UTC+08:00 | |
| CGZ | KCGZ | Casa Grande Municipal Airport | Casa Grande, Arizona, United States | UTC−07:00 | |
| -CH- |
| CHA | KCHA | Chattanooga Metropolitan Airport (Lovell Field) | Chattanooga, Tennessee, United States | UTC−05:00 | Mar-Nov |
| CHB | OPCL | Chilas Airport | Chilas, Pakistan | UTC+05:00 | |
| CHC | NZCH | Christchurch International Airport | Christchurch, New Zealand | UTC+12:00 | Sep-Apr |
| CHF | RKPE | Jinhae Airport | Jinhae, South Korea | UTC+09:00 | |
| CHG | ZYCY | Chaoyang Airport | Chaoyang, Liaoning, China | UTC+08:00 | |
| CHH | SPPY | Chachapoyas Airport | Chachapoyas, Peru | UTC−05:00 | |
| CHI[1] | | metropolitan area2 | Chicago, Illinois, United States | UTC−06:00 | Mar-Nov |
| CHJ | FVCH | Chipinge Airport | Chipinge, Zimbabwe | UTC+02:00 | |
| CHK | KCHK | Chickasha Municipal Airport | Chickasha, Oklahoma, United States | UTC−06:00 | Mar-Nov |
| CHL | KLLJ | Challis Airport (FAA: LLJ) | Challis, Idaho, United States | UTC−07:00 | Mar-Nov |
| CHM | SPEO | Tnte. FAP Jaime Montreuil Morales Airport | Chimbote, Peru | UTC−05:00 | |
| CHN | RKJU | Jeonju Airport | Jeonju, South Korea | UTC+09:00 | |
| CHO | KCHO | Charlottesville–Albemarle Airport | Charlottesville, Virginia, United States | UTC−05:00 | Mar-Nov |
| CHP | | Circle Hot Springs Airport | Circle Hot Springs, Alaska, United States | UTC−09:00 | Mar-Nov |
| CHQ | LGSA | Chania International Airport ("Ioannis Daskalogiannis") | Chania, Greece | UTC+02:00 | Mar-Oct |
| CHR | LFLX | Châteauroux-Centre "Marcel Dassault" Airport | Châteauroux, Centre-Val de Loire, France | UTC+01:00 | Mar-Oct |
| CHS | KCHS | Charleston International Airport / Charleston Air Force Base | Charleston, South Carolina, United States | UTC−05:00 | Mar-Nov |
| CHT | NZCI | Chatham Islands / Tuuta Airport | Chatham Islands, New Zealand | UTC+12:45 | Sep-Apr |
| CHU | | Chuathbaluk Airport (FAA: 9A3) | Chuathbaluk, Alaska, United States | UTC−09:00 | Mar-Nov |
| CHV | LPCH | Chaves Airport | Chaves, Portugal | UTC±00:00 | Mar-Oct |
| CHX | MPCH | Changuinola "Capitán Manuel Niño" International Airport | Changuinola, Panama | UTC−05:00 | |
| CHY | AGGC | Choiseul Bay Airport | Choiseul Bay, Taro Island, Solomon Islands | UTC+11:00 | |
| CHZ | | Chiloquin State Airport (FAA: 2S7) | Chiloquin, Oregon, United States | UTC−08:00 | Mar-Nov |
| -CI- |
| CIA | LIRA | Ciampino–G. B. Pastine International Airport | Rome, Lazio, Italy | UTC+01:00 | Mar-Oct |
| CIC | KCIC | Chico Municipal Airport | Chico, California, United States | UTC−08:00 | Mar-Nov |
| CID | KCID | The Eastern Iowa Airport | Cedar Rapids, Iowa, United States | UTC−06:00 | Mar-Nov |
| CIE | YCOI | Collie Airport | Collie, Western Australia, Australia | UTC+08:00 | |
| CIF | ZBCF | Chifeng Yulong Airport | Chifeng, Inner Mongolia, China | UTC+08:00 | |
| CIG | KCAG | Craig–Moffat Airport (FAA: CAG) | Craig, Colorado, United States | UTC−07:00 | Mar-Nov |
| CIH | ZBCZ | Changzhi Wangcun Airport | Changzhi, Shanxi, China | UTC+08:00 | |
| CII | LTBD | Aydın Airport[1] (Çıldır Airport) | Aydın, Turkey | UTC+02:00 | Mar-Oct |
| CIJ | SLCO | Captain Aníbal Arab Airport | Cobija, Bolivia | UTC−04:00 | |
| CIK | PACI | Chalkyitsik Airport | Chalkyitsik, Alaska, United States | UTC−09:00 | Mar-Nov |
| CIL | | Council Airport (FAA: K29) | Council, Alaska, United States | UTC−09:00 | Mar-Nov |
| CIM | SKCM | Cimitarra Airport | Cimitarra, Colombia | UTC−05:00 | |
| CIN | KCIN | Arthur N. Neu Airport | Carroll, Iowa, United States | UTC−06:00 | Mar-Nov |
| CIO | SGCO | Teniente Coronel Carmelo Peralta Airport | Concepción, Paraguay | UTC−04:00 | Oct-Mar |
| CIP | FLCP | Chipata Airport | Chipata, Zambia | UTC+02:00 | |
| CIQ | | Chiquimula Airport | Chiquimula, Guatemala | UTC−06:00 | |
| CIR | KCIR | Cairo Regional Airport | Cairo, Illinois, United States | UTC−06:00 | Mar-Nov |
| CIS | PCIS | Canton Island Airport | Canton Island, Kiribati | UTC+13:00 | |
| CIT | UAII | Shymkent International Airport | Shymkent, Kazakhstan | UTC+06:00 | |
| CIU | KCIU | Chippewa County International Airport | Sault Ste Marie, Michigan, United States | UTC−05:00 | Mar-Nov |
| CIW | TVSC | Canouan Airport | Canouan, Saint Vincent and the Grenadines | UTC−04:00 | |
| CIX | SPHI | FAP Captain José Abelardo Quiñones Gonzáles International Airport | Chiclayo, Peru | UTC−05:00 | |
| CIY | LICB | Comiso Airport | Comiso, Sicily, Italy | UTC+01:00 | Mar-Oct |
| CIZ | SWKO | Coari Airport | Coari, Amazonas, Brazil | UTC−04:00 | |
| -CJ- |
| CJA | SPJR | Mayor General FAP Armando Revoredo Iglesias Airport | Cajamarca, Peru | UTC−05:00 | |
| CJB | VOCB | Coimbatore International Airport | Coimbatore, Tamil Nadu, India | UTC+05:30 | |
| CJC | SCCF | El Loa Airport | Calama, Chile | UTC−03:00 | |
| CJD | | Candilejas Airport | Candilejas, Colombia | UTC−05:00 | |
| CJF | YCWA | Coondewanna Airport | Coondewanna, Western Australia, Australia | UTC+08:00 | |
| CJH | | Chilko Lake (Tsylos Park Lodge) Aerodrome (TC: CAG3) | Chilko Lake, British Columbia, Canada | UTC−08:00 | Mar-Nov |
| CJJ | RKTU | Cheongju International Airport | Cheongju, South Korea | UTC+09:00 | |
| CJL | OPCH | Chitral Airport | Chitral, Pakistan | UTC+05:00 | |
| CJM | VTSE | Chumphon Airport | Chumphon, Thailand | UTC+07:00 | |
| CJS | MMCS | Abraham González International Airport | Ciudad Juárez, Chihuahua, Mexico | UTC−07:00 | Mar-Nov |
| CJT | MMCO | Copalar Airport | Comitán, Chiapas, Mexico | UTC−06:00 | Apr-Oct |
| CJU | RKPC | Jeju International Airport | Jeju, South Korea | UTC+09:00 | |
| -CK- |
| CKA | KCKA | Kegelman Air Force Auxiliary Field | Cherokee, Oklahoma, United States | UTC−06:00 | Mar-Nov |
| CKB | KCKB | North Central West Virginia Airport | Clarksburg, West Virginia, United States | UTC−05:00 | Mar-Nov |
| CKC | UKKE | Cherkasy International Airport | Cherkasy, Ukraine | UTC+02:00 | Mar-Oct |
| CKD | | Crooked Creek Airport (FAA: CJX) | Crooked Creek, Alaska, United States | UTC−09:00 | Mar-Nov |
| CKE | | Lampson Field[1] (FAA: 1O2) | Lakeport, California, United States | UTC−08:00 | Mar-Nov |
| CKG | ZUCK | Chongqing Jiangbei International Airport | Chongqing, China | UTC+08:00 | |
| CKH | UESO | Chokurdakh Airport | Chokurdakh, Yakutia, Russia | UTC+11:00 | |
| CKI | YCKI | Croker Island Airport | Croker Island, Northern Territory, Australia | UTC+09:30 | |
| CKK | KCVK | Sharp County Regional Airport[1] (FAA: CVK) | Ash Flat, Arkansas, United States | UTC−06:00 | Mar-Nov |
| CKL | UUMU | Chkalovsky Airport | Shchyolkovo (Moscow Oblast), Russia | UTC+03:00 | |
| CKM | KCKM | Fletcher Field | Clarksdale, Mississippi, United States | UTC−06:00 | Mar-Nov |
| CKN | KCKN | Crookston Municipal Airport (Kirkwood Field) | Crookston, Minnesota, United States | UTC−06:00 | Mar-Nov |
| CKO | SSCP | Cornélio Procópio Airport | Cornélio Procópio, Paraná, Brazil | UTC−03:00 | Oct-Feb |
| CKR | | Crane Island Airstrip[1] | Crane Island, Washington, United States | UTC−08:00 | Mar-Nov |
| CKS | SBCJ | Carajás Airport | Parauapebas, Pará, Brazil | UTC−03:00 | |
| CKT | OIMC | Sarakhs Airport | Sarakhs, Iran | UTC+03:30 | Mar-Sep |
| CKU | | Cordova Municipal Airport | Cordova, Alaska, United States | UTC−09:00 | Mar-Nov |
| CKV | KCKV | Clarksville–Montgomery County Regional Airport (Outlaw Field) | Clarksville, Tennessee, United States | UTC−06:00 | Mar-Nov |
| CKW | YCHK | Graeme Rowley Aerodrome | Christmas Creek mine, Western Australia | UTC+08:00 |
| CKX | | Chicken Airport | Chicken, Alaska, United States | UTC−09:00 | Mar-Nov |
| CKY | GUCY | Conakry International Airport (Gbessia Int'l Airport) | Conakry, Guinea | UTC±00:00 | |
| CKZ | LTBH | Çanakkale Airport | Çanakkale, Turkey | UTC+02:00 | Mar-Oct |
| -CL- |
| CLA | VGCM | Comilla Airport | Comilla, Bangladesh | UTC+06:00 | |
| CLD | KCRQ | McClellan–Palomar Airport (FAA: CRQ) | Carlsbad, California, United States | UTC−08:00 | Mar-Nov |
| CLE | KCLE | Cleveland Hopkins International Airport | Cleveland, Ohio, United States | UTC−05:00 | Mar-Nov |
| CLG | | New Coalinga Municipal Airport (FAA: C80) | Coalinga, California, United States | UTC−08:00 | Mar-Nov |
| CLH | YCAH | Coolah Airport | Coolah, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CLI | KCLI | Clintonville Municipal Airport | Clintonville, Wisconsin, United States | UTC−06:00 | Mar-Nov |
| CLJ | LRCL | Cluj-Napoca International Airport | Cluj-Napoca, Romania | UTC+02:00 | Mar-Oct |
| CLK | KCLK | Clinton Regional Airport | Clinton, Oklahoma, United States | UTC−06:00 | Mar-Nov |
| CLL | KCLL | Easterwood Airport (Easterwood Field) | College Station, Texas, United States | UTC−06:00 | Mar-Nov |
| CLM | KCLM | William R. Fairchild International Airport | Port Angeles, Washington, United States | UTC−08:00 | Mar-Nov |
| CLN | SBCI | Carolina Airport | Carolina, Maranhão, Brazil | UTC−03:00 | |
| CLO | SKCL | Alfonso Bonilla Aragón International Airport | Cali, Colombia | UTC−05:00 | |
| CLP | PFCL | Clarks Point Airport | Clark's Point, Alaska, United States | UTC−09:00 | Mar-Nov |
| CLQ | MMIA | Licenciado Miguel de la Madrid Airport | Colima City, Colima, Mexico | UTC−06:00 | Apr-Oct |
| CLR | KCLR | Cliff Hatfield Memorial Airport[1] | Calipatria, California, United States | UTC−08:00 | Mar-Nov |
| CLS | KCLS | Chehalis-Centralia Airport | Chehalis, Washington, United States | UTC−08:00 | Mar-Nov |
| CLT | KCLT | Charlotte Douglas International Airport | Charlotte, North Carolina, United States | UTC−05:00 | Mar-Nov |
| CLU | KBAK | Columbus Municipal Airport (FAA: BAK) | Columbus, Indiana, United States | UTC−05:00 | Mar-Nov |
| CLV | SWKN | Caldas Novas Airport | Caldas Novas, Goiás, Brazil | UTC−03:00 | Oct-Feb |
| CLW | KCLW | Clearwater Air Park | Clearwater, Florida, United States | UTC−05:00 | Mar-Nov |
| CLX | SATC | Clorinda Airport | Clorinda, Formosa, Argentina | UTC−03:00 | |
| CLY | LFKC | Calvi – Sainte-Catherine Airport | Calvi, Corsica, France | UTC+01:00 | Mar-Oct |
| CLZ | SVCL | Calabozo Airport | Calabozo, Venezuela | UTC−04:30 | |
| -CM- |
| CMA | YCMU | Cunnamulla Airport | Cunnamulla, Queensland, Australia | UTC+10:00 | |
| CMB | VCBI | Bandaranaike International Airport | Colombo, Sri Lanka | UTC+05:30 | |
| CMC | SNWC | Camocim Airport | Camocim, Ceará, Brazil | UTC−03:00 | |
| CMD | YCTM | Cootamundra Airport | Cootamundra, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CME | MMCE | Ciudad del Carmen International Airport | Ciudad del Carmen, Campeche, Mexico | UTC−06:00 | Apr-Oct |
| CMF | LFLB | Chambéry-Savoie Airport | Chambéry, Rhône-Alpes, France | UTC+01:00 | Mar-Oct |
| CMG | SBCR | Corumbá International Airport | Corumbá, Mato Grosso do Sul, Brazil | UTC−04:00 | Oct-Feb |
| CMH | KCMH | Port Columbus International Airport | Columbus, Ohio, United States | UTC−05:00 | Mar-Nov |
| CMI | KCMI | University of Illinois Willard Airport | Champaign, Illinois, United States | UTC−06:00 | Mar-Nov |
| CMJ | RCCM | Qimei Airport | Qimei, Taiwan | UTC+08:00 | |
| CMK | FWCM | Club Makokola Airport | Club Makokola, Malawi | UTC+02:00 | |
| CML | YCMW | Camooweal Airport | Camooweal, Queensland, Australia | UTC+10:00 | |
| CMM | MGCR | Carmelita Airport | Carmelita, Guatemala | UTC−06:00 | |
| CMN | GMMN | Mohammed V International Airport | Casablanca, Morocco | UTC±00:00 | Mar-Oct1 |
| CMO | HCMO | Obbia Airport | Obbia, Somalia | UTC+03:00 | |
| CMP | SNKE | Santana do Araguaia Airport | Santana do Araguaia, Pará, Brazil | UTC−03:00 | |
| CMQ | YCMT | Clermont Airport | Clermont, Queensland, Australia | UTC+10:00 | |
| CMR | LFGA | Colmar - Houssen Airport | Colmar, Alsace, France | UTC+01:00 | Mar-Oct |
| CMS | HCMS | Iskushuban Airport | Iskushuban (Scusciuban), Somalia | UTC+03:00 | |
| CMT | | Cameta Airport | Cametá, Pará, Brazil | UTC−03:00 | |
| CMU | AYCH | Chimbu Airport | Kundiawa, Papua New Guinea | UTC+10:00 | |
| CMV | NZCX | Coromandel Aerodrome | Coromandel, New Zealand | UTC+12:00 | Sep-Apr |
| CMW | MUCM | Ignacio Agramonte International Airport | Camagüey, Cuba | UTC−05:00 | Mar-Nov |
| CMX | KCMX | Houghton County Memorial Airport | Hancock, Michigan, United States | UTC−05:00 | Mar-Nov |
| CMY | KCMY | Sparta/Fort McCoy Airport | Sparta, Wisconsin, United States | UTC−06:00 | Mar-Nov |
| CMZ | | Caia Airport[1] | Caia, Mozambique | UTC+02:00 | |
| -CN- |
| CNA | MMCA | Cananea National Airport | Cananea, Sonora, Mexico | UTC−07:00 | |
| CNB | YCNM | Coonamble Airport | Coonamble, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CNC | YCCT | Coconut Island Airport | Coconut (Poruma) Island, Queensland, Australia | UTC+10:00 | |
| CND | LRCK | Mihail Kogălniceanu International Airport | Constanța, Romania | UTC+02:00 | Mar-Oct |
| CNE | | Fremont County Airport (FAA: 1V6) | Cañon City, Colorado, United States | UTC−07:00 | Mar-Nov |
| CNF | SBCF | Tancredo Neves International Airport (Confins Int'l Airport) | Belo Horizonte, Minas Gerais, Brazil | UTC−03:00 | Oct-Feb |
| CNG | LFBG | Cognac – Châteaubernard Air Base | Cognac, Poitou-Charentes, France | UTC+01:00 | Mar-Oct |
| CNH | KCNH | Claremont Municipal Airport | Claremont, New Hampshire, United States | UTC−05:00 | Mar-Nov |
| CNI | ZYCH | Changhai Airport | Changhai, Liaoning, China | UTC+08:00 | |
| CNJ | YCCY | Cloncurry Airport | Cloncurry, Queensland, Australia | UTC+10:00 | |
| CNK | KCNK | Blosser Municipal Airport | Concordia, Kansas, United States | UTC−06:00 | Mar-Nov |
| CNL | EKSN | Sindal Airport | Sindal, Denmark | UTC+01:00 | Mar-Oct |
| CNM | KCNM | Cavern City Air Terminal | Carlsbad, New Mexico, United States | UTC−07:00 | Mar-Nov |
| CNO | KCNO | Chino Airport | Chino, California, United States | UTC−08:00 | Mar-Nov |
| CNP | BGCO | Nerlerit Inaat Airport (Constable Pynt Airport) | Ittoqqortoormiit, Greenland | UTC−01:00 | Mar-Oct |
| CNQ | SARC | Doctor Fernando Piragine Niveyro International Airport | Corrientes, Corrientes, Argentina | UTC−03:00 | |
| CNR | SCRA | Chañaral Airport | Chañaral, Chile | UTC−03:00 | |
| CNS | YBCS | Cairns Airport | Cairns, Queensland, Australia | UTC+10:00 | |
| CNT | | Charata Airport | Charata, Chaco, Argentina | UTC−03:00 | |
| CNU | KCNU | Chanute Martin Johnson Airport | Chanute, Kansas, United States | UTC−06:00 | Mar-Nov |
| CNV | SNED | Canavieiras Airport | Canavieiras, Bahia, Brazil | UTC−03:00 | |
| CNW | KCNW | TSTC Waco Airport | Waco, Texas, United States | UTC−06:00 | Mar-Nov |
| CNX | VTCC | Chiang Mai International Airport | Chiang Mai, Thailand | UTC+07:00 | |
| CNY | KCNY | Canyonlands Field | Moab, Utah, United States | UTC−07:00 | Mar-Nov |
| CNZ | | Cangamba Airport | Cangamba, Angola | UTC+01:00 | |
| -CO- |
| COA | | Columbia Airport (FAA: O22) | Columbia, California, United States | UTC−08:00 | Mar-Nov |
| COB | | Coolibah Airport | Coolibah Station, Northern Territory, Australia | UTC+09:30 | |
| COC | SAAC | Comodoro Pierrestegui Airport | Concordia, Entre Ríos, Argentina | UTC−03:00 | |
| COD | KCOD | Yellowstone Regional Airport | Cody, Wyoming, United States | UTC−07:00 | Mar-Nov |
| COE | KCOE | Coeur d'Alene Airport | Coeur d'Alene, Idaho, United States | UTC−08:00 | Mar-Nov |
| COF | KCOF | Patrick Air Force Base | Cocoa Beach, Florida, United States | UTC−05:00 | Mar-Nov |
| COG | SKCD | Mandinga Airport | Condoto, Colombia | UTC−05:00 | |
| COH | VECO | Cooch Behar Airport | Cooch Behar, West Bengal, India | UTC+05:30 | |
| COI | KCOI | Merritt Island Airport | Merritt Island, Florida, United States | UTC−05:00 | Mar-Nov |
| COJ | YCBB | Coonabarabran Airport | Coonabarabran, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| COK | VOCI | Cochin International Airport (Nedumbassery Airport) | Kochi (Cochin), Kerala, India | UTC+05:30 | |
| COL | | Coll Airport | Coll, Scotland, United Kingdom | UTC±00:00 | Mar-Oct |
| COM | KCOM | Coleman Municipal Airport | Coleman, Texas, United States | UTC−06:00 | Mar-Nov |
| CON | KCON | Concord Municipal Airport | Concord, New Hampshire, United States | UTC−05:00 | Mar-Nov |
| COO | DBBB | Cadjehoun Airport | Cotonou, Benin | UTC+01:00 | |
| COP | | Cooperstown-Westville Airport (FAA: K23) | Cooperstown, New York, United States | UTC−05:00 | Mar-Nov |
| COQ | ZMCD | Choibalsan Airport | Choibalsan, Mongolia | UTC+08:00 | |
| COR | SACO | Ingeniero Aeronáutico Ambrosio L.V. Taravella International Airport (Pajas Blancas) | Córdoba, Córdoba, Argentina | UTC−03:00 | |
| COS | KCOS | Colorado Springs Airport | Colorado Springs, Colorado, United States | UTC−07:00 | Mar-Nov |
| COT | KCOT | Cotulla–La Salle County Airport | Cotulla, Texas, United States | UTC−06:00 | Mar-Nov |
| COU | KCOU | Columbia Regional Airport | Columbia, Missouri, United States | UTC−06:00 | Mar-Nov |
| COW | SCQB | Coquimbo Airport | Coquimbo, Chile | UTC−03:00 | |
| COY | YCWY | Coolawanyah Station Airport | Coolawanyah Station, Western Australia, Australia | UTC+08:00 | |
| COZ | MDCZ | Constanza Airport | Constanza, Dominican Republic | UTC−04:00 | |
| -CP- |
| CPA | GLCP | Cape Palmas Airport | Harper, Liberia | UTC±00:00 | |
| CPB | SKCA | Capurganá Airport | Capurganá, Colombia | UTC−05:00 | |
| CPC | SAZY | Aviador Carlos Campos Airport | San Martín de los Andes, Neuquén, Argentina | UTC−03:00 | |
| CPD | YCBP | Coober Pedy Airport | Coober Pedy, South Australia, Australia | UTC+09:30 | Oct-Apr |
| CPE | MMCP | Ing. Alberto Acuña Ongay International Airport | Campeche, Campeche, Mexico | UTC−06:00 | Apr-Oct |
| CPF | WARC | Ngloram Airport | Cepu, Indonesia | UTC+07:00 | |
| CPG | | Carmen de Patagones Airport | Carmen de Patagones, Buenos Aires, Argentina | UTC−03:00 | |
| CPH | EKCH | Copenhagen Airport, Kastrup | Copenhagen, Denmark | UTC+01:00 | Mar-Oct |
| CPI | | Cape Orford Airport[1] | Cape Orford, Papua New Guinea | UTC+10:00 | |
| CPL | SKHA | General Navas Pardo Airport | Chaparral, Colombia | UTC−05:00 | |
| CPM | KCPM | Compton/Woodley Airport | Compton, California, United States | UTC−08:00 | Mar-Nov |
| CPN | | Cape Rodney Airport | Cape Rodney, Papua New Guinea | UTC+10:00 | |
| CPO | SCAT | Desierto de Atacama Airport | Copiapó, Chile | UTC−03:00 | |
| CPR | KCPR | Casper–Natrona County International Airport | Casper, Wyoming, United States | UTC−07:00 | Mar-Nov |
| CPS | KCPS | St. Louis Downtown Airport | Cahokia (near St. Louis/MO), Illinois, United States | UTC−06:00 | Mar-Nov |
| CPT | FACT | Cape Town International Airport | Cape Town, South Africa | UTC+02:00 | |
| CPU | | Cururupu Airport | Cururupu, Maranhão, Brazil | UTC−03:00 | |
| CPV | SBKG | Campina Grande Airport (Presidente João Suassuna Airport) | Campina Grande, Paraíba, Brazil | UTC−03:00 | |
| CPX | TJCP | Benjamín Rivera Noriega Airport | Culebra, Puerto Rico, United States | UTC−04:00 | |
| -CQ- |
| CQA | | Canarana Airport | Canarana, Mato Grosso, Brazil | UTC−04:00 | Oct-Feb |
| CQD | OIFS | Shahrekord Airport | Shahrekord, Iran | UTC+03:30 | Mar-Sep |
| CQF | LFAC | Calais–Dunkerque Airport | Calais / Dunkirk, Nord-Pas-de-Calais, France | UTC+01:00 | Mar-Oct |
| CQM | LERL | Ciudad Real Central Airport | Ciudad Real, Castilla-La Mancha, Spain | UTC+01:00 | Mar-Oct |
| CQP | | Cape Flattery Airport | Cape Flattery, Queensland, Australia | UTC+10:00 | |
| CQS | SWCQ | Costa Marques Airport | Costa Marques, Rondônia, Brazil | UTC−04:00 | |
| CQT | | Caquetania Airport | Caquetania, Colombia | UTC−05:00 | |
| -CR- |
| CRA | LRCV | Craiova International Airport | Craiova, Romania | UTC+02:00 | Mar-Oct |
| CRB | YCBR | Collarenebri Airport | Collarenebri, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CRC | SKGO | Santa Ana Airport | Cartago, Colombia | UTC−05:00 | |
| CRD | SAVC | General Enrique Mosconi International Airport | Comodoro Rivadavia, Chubut, Argentina | UTC−03:00 | |
| CRE | KCRE | Grand Strand Airport | North Myrtle Beach, South Carolina, United States | UTC−05:00 | Mar-Nov |
| CRF | FEFC | Carnot Airport | Carnot, Central African Republic | UTC+01:00 | |
| CRG | KCRG | Jacksonville Executive at Craig Airport | Jacksonville, Florida, United States | UTC−05:00 | Mar-Nov |
| CRH | | Cherrabah Airport | Cherrabah, Queensland, Australia | UTC+10:00 | |
| CRI | MYCI | Colonel Hill Airport (Crooked Island Airport) | Colonel Hill, Crooked Island, Bahamas | UTC−05:00 | Mar-Nov |
| CRJ | | Coorabie Airport | Coorabie, South Australia, Australia | UTC+09:30 | Oct-Apr |
| CRK | RPLC | Clark International Airport | Clark Special Economic Zone, Philippines | UTC+08:00 | |
| CRL | EBCI | Brussels South Charleroi Airport | Charleroi, Belgium | UTC+01:00 | Mar-Oct |
| CRM | RPVF | Catarman National Airport | Catarman, Philippines | UTC+08:00 | |
| CRO | KCRO | Corcoran Airport | Corcoran, California, United States | UTC−08:00 | Mar-Nov |
| CRP | KCRP | Corpus Christi International Airport | Corpus Christi, Texas, United States | UTC−06:00 | Mar-Nov |
| CRQ | SBCV | Caravelas Airport | Caravelas, Bahia, Brazil | UTC−03:00 | |
| CRR | SANW | Ceres Airport | Ceres, Santa Fe, Argentina | UTC−03:00 | |
| CRS | KCRS | C. David Campbell Field (Corsicana Municipal Airport) | Corsicana, Texas, United States | UTC−06:00 | Mar-Nov |
| CRT | KCRT | Z. M. Jack Stell Field | Crossett, Arkansas, United States | UTC−06:00 | Mar-Nov |
| CRU | | Lauriston Airport (Carriacou Island Airport) | Carriacou, Grenada | UTC−04:00 | |
| CRV | LIBC | Crotone Airport (Sant'Anna Airport) | Crotone, Calabria, Italy | UTC+01:00 | Mar-Oct |
| CRW | KCRW | Yeager Airport | Charleston, West Virginia, United States | UTC−05:00 | Mar-Nov |
| CRX | KCRX | Roscoe Turner Airport | Corinth, Mississippi, United States | UTC−06:00 | Mar-Nov |
| CRY | | Carlton Hill Airport | Carlton Hill Station, Western Australia, Australia | UTC+08:00 | |
| CRZ | UTAV | Turkmenabat Airport | Türkmenabat, Turkmenistan | UTC+05:00 | |
| -CS- |
| CSA | | Colonsay Airport | Colonsay, Scotland, United Kingdom | UTC±00:00 | Mar-Oct |
| CSB | LRCS | Caransebeș Airport | Caransebeș, Romania | UTC+02:00 | Mar-Oct |
| CSC | MRMJ[2] | Cañas Mojica Airport | Cañas, Costa Rica | UTC−06:00 | |
| CSD | | Cresswell Downs Airport | Cresswell Downs, Northern Territory, Australia | UTC+09:30 | |
| CSE | | Buckhorn Ranch Airport (FAA: 0CO2) | Crested Butte, Colorado, United States | UTC−07:00 | Mar-Nov |
| CSF | LFPC | Creil Air Base | Creil, Picardy, France | UTC+01:00 | Mar-Oct |
| CSG | KCSG | Columbus Airport | Columbus, Georgia, United States | UTC−05:00 | Mar-Nov |
| CSH | ULAS | Solovki Airport | Solovetsky Islands, Arkhangelsk Oblast, Russia | UTC+03:00 | |
| CSI | YCAS | Casino Airport | Casino, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CSK | GOGS | Cap Skirring Airport | Cap Skirring, Senegal | UTC±00:00 | |
| CSM | KCSM | Clinton-Sherman Airport | Clinton, Oklahoma, United States | UTC−06:00 | Mar-Nov |
| CSN | KCXP | Carson Airport (FAA: CXP) | Carson City, Nevada, United States | UTC−08:00 | Mar-Nov |
| CSO | EDBC | Magdeburg–Cochstedt Airport | Magdeburg, Saxony-Anhalt, Germany | UTC+01:00 | Mar-Oct |
| CSQ | KCSQ | Creston Municipal Airport | Creston, Iowa, United States | UTC−06:00 | Mar-Nov |
| CSR | | Casuarito Airport | Casuarito, Colombia | UTC−05:00 | |
| CSS | SSCL | Cassilândia Airport | Cassilândia, Mato Grosso do Sul, Brazil | UTC−04:00 | Oct-Feb |
| CST | NFCS | Castaway Island Seaplane Base | Castaway Island, Mamanuca Islands, Fiji | UTC+12:00 | Nov-Jan |
| CSU | | Santa Cruz do Sul Airport[1] | Santa Cruz do Sul, Rio Grande do Sul, Brazil | UTC−03:00 | Oct-Feb |
| CSV | KCSV | Crossville Memorial-Whitson Field | Crossville, Tennessee, United States | UTC−06:00 | Mar-Nov |
| CSX | ZGHA | Changsha Huanghua International Airport | Changsha, Hunan, China | UTC+08:00 | |
| CSY | UWKS | Cheboksary Airport | Cheboksary, Chuvashia, Russia | UTC+03:00 | |
| CSZ | SAZC | Brigadier Hector Eduardo Ruiz Airport | Coronel Suárez, Buenos Aires, Argentina | UTC−03:00 | |
| -CT- |
| CTA | LICC | Catania–Fontanarossa Airport | Catania, Sicily, Italy | UTC+01:00 | Mar-Oct |
| CTB | KCTB | Cut Bank Municipal Airport | Cut Bank, Montana, United States | UTC−07:00 | Mar-Nov |
| CTC | SANC | Coronel Felipe Varela International Airport | Catamarca, Catamarca, Argentina | UTC−03:00 | |
| CTD | MPCE | Chitré Alonso Valderrama Airport | Chitré, Panama | UTC−05:00 | |
| CTE | | Cartí Airport | Cartí, Panama | UTC−05:00 | |
| CTF | MGCT | Coatepeque Airport | Coatepeque, Guatemala | UTC−06:00 | |
| CTG | SKCG | Rafael Núñez International Airport | Cartagena, Colombia | UTC−05:00 | |
| CTH | KMQS | Chester County G. O. Carlson Airport (FAA: MQS) | Coatesville, Pennsylvania, United States | UTC−05:00 | Mar-Nov |
| CTI | FNCV | Cuito Cuanavale Airport | Cuito Cuanavale, Angola | UTC+01:00 | |
| CTK | | Canton Municipal Airport (FAA: 7G9) | Canton, South Dakota, United States | UTC−06:00 | Mar-Nov |
| CTL | YBCV | Charleville Airport | Charleville, Queensland, Australia | UTC+10:00 | |
| CTM | MMCM | Chetumal International Airport | Chetumal, Quintana Roo, Mexico | UTC−05:00 | |
| CTN | YCKN | Cooktown Airport | Cooktown, Queensland, Australia | UTC+10:00 | |
| CTO | | Calverton Executive Airpark (FAA: 3C8) | Calverton, New York, United States | UTC−05:00 | Mar-Nov |
| CTP | SNCP | Carutapera Airport | Carutapera, Maranhão, Brazil | UTC−03:00 | |
| CTQ | SSVP | Do Palmar Airport | Santa Vitória, Rio Grande do Sul, Brazil | UTC−03:00 | Oct-Feb |
| CTR | | Cattle Creek Airport | Cattle Creek, Northern Territory, Australia | UTC+09:30 | |
| CTS | RJCC | New Chitose Airport | Sapporo, Hokkaido, Japan | UTC+09:00 | |
| CTT | LFMQ | Le Castellet Airport | Le Castellet, Provence-Alpes-Côte d'Azur, France | UTC+01:00 | Mar-Oct |
| CTU | ZUUU | Chengdu Shuangliu International Airport | Chengdu, Sichuan, China | UTC+08:00 | |
| CTW | | Cottonwood Airport (FAA: P52) | Cottonwood, Arizona, United States | UTC−07:00 | |
| CTX | | Cortland County Airport (Chase Field, FAA: N03) | Cortland, New York, United States | UTC−05:00 | Mar-Nov |
| CTY | KCTY | Cross City Airport | Cross City, Florida, United States | UTC−05:00 | Mar-Nov |
| CTZ | KCTZ | Clinton–Sampson County Airport | Clinton, North Carolina, United States | UTC−05:00 | Mar-Nov |
| -CU- |
| CUA | | Ciudad Constitución Airport | Ciudad Constitución, Baja California Sur, Mexico | UTC−07:00 | Apr-Oct |
| CUB | KCUB | Jim Hamilton–L.B. Owens Airport | Columbia, South Carolina, United States | UTC−05:00 | Mar-Nov |
| CUC | SKCC | Camilo Daza International Airport | Cúcuta, Colombia | UTC−05:00 | |
| CUD | YCDR | Caloundra Airport | Caloundra, Queensland, Australia | UTC+10:00 | |
| CUE | SECU | Mariscal Lamar International Airport | Cuenca, Ecuador | UTC−05:00 | |
| CUF | LIMZ | Cuneo International Airport | Cuneo, Piedmont, Italy | UTC+01:00 | Mar-Oct |
| CUG | YCUA | Cudal Airport | Cudal, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CUH | KCUH | Cushing Municipal Airport | Cushing, Oklahoma, United States | UTC−06:00 | Mar-Nov |
| CUI | | Curillo Airport | Curillo, Colombia | UTC−05:00 | |
| CUJ | | Culion Airport | Culion, Philippines | UTC+08:00 | |
| CUK | | Caye Caulker Airport | Caye Caulker, Belize | UTC−06:00 | |
| CUL | MMCL | Bachigualato Federal International Airport | Culiacán, Sinaloa, Mexico | UTC−07:00 | Apr-Oct |
| CUM | SVCU | Antonio José de Sucre Airport | Cumaná, Venezuela | UTC−04:30 | |
| CUN | MMUN | Cancún International Airport | Cancún, Quintana Roo, Mexico | UTC−05:00 | |
| CUO | SKCR | Caruru Airport | Caruru, Colombia | UTC−05:00 | |
| CUP | SVCP | General José Francisco Bermúdez Airport | Carúpano, Venezuela | UTC−04:30 | |
| CUQ | YCOE | Coen Airport | Coen, Queensland, Australia | UTC+10:00 | |
| CUR | TNCC | Curaçao International Airport (Hato Int'l Airport) | Willemstad, Curaçao | UTC−04:00 | |
| CUS | | Columbus Municipal Airport (FAA: 0NM0) | Columbus, New Mexico, United States | UTC−07:00 | Mar-Nov |
| CUT | SAZW | Cutral Có Airport | Cutral Có, Neuquén, Argentina | UTC−03:00 | |
| CUU | MMCU | General Roberto Fierro Villalobos International Airport | Chihuahua, Chihuahua, Mexico | UTC−07:00 | Apr-Oct |
| CUV | SVCG | Casigua El Cubo Airport | Casigua El Cubo, Venezuela | UTC−04:30 | |
| CUX | | Cuddihy Field (FAA: 07TE) | Corpus Christi, Texas, United States | UTC−06:00 | Mar-Nov |
| CUY | YCUE | Cue Airport | Cue, Western Australia, Australia | UTC+08:00 | |
| CUZ | SPZO | Alejandro Velasco Astete International Airport | Cusco, Peru | UTC−05:00 | |
| -CV- |
| CVB | AYCB | Chungrebu Airport | Chungrebu, Papua New Guinea | UTC+10:00 | |
| CVC | YCEE | Cleve Airport | Cleve, South Australia, Australia | UTC+09:30 | Oct-Apr |
| CVE | SKCV | Coveñas Airport | Coveñas, Colombia | UTC−05:00 | |
| CVF | LFLJ | Courchevel Altiport | Courchevel, Rhône-Alpes, France | UTC+01:00 | Mar-Oct |
| CVG | KCVG | Cincinnati/Northern Kentucky International Airport | Hebron (near Cincinnati/OH), Kentucky, United States | UTC−05:00 | Mar-Nov |
| CVH | | Caviahue Airport | Caviahue, Neuquén, Argentina | UTC−03:00 | |
| CVI | | Caleta Olivia Airport | Caleta Olivia, Santa Cruz, Argentina | UTC−03:00 | |
| CVJ | MMCB | General Mariano Matamoros Airport | Cuernavaca, Morelos, Mexico | UTC−06:00 | Apr-Oct |
| CVL | | Cape Vogel Airport | Cape Vogel, Papua New Guinea | UTC+10:00 | |
| CVM | MMCV | General Pedro J. Méndez International Airport | Ciudad Victoria, Tamaulipas, Mexico | UTC−06:00 | Apr-Oct |
| CVN | KCVN | Clovis Municipal Airport | Clovis, New Mexico, United States | UTC−07:00 | Mar-Nov |
| CVO | KCVO | Corvallis Municipal Airport | Corvallis, Oregon, United States | UTC−08:00 | Mar-Nov |
| CVQ | YCAR | Carnarvon Airport | Carnarvon, Western Australia, Australia | UTC+08:00 | |
| CVS | KCVS | Cannon Air Force Base | Clovis, New Mexico, United States | UTC−07:00 | Mar-Nov |
| CVT | EGBE | Coventry Airport | Coventry, England, United Kingdom | UTC±00:00 | Mar-Oct |
| CVU | LPCR | Corvo Airport | Corvo Island, Azores, Portugal | UTC−01:00 | Mar-Oct |
| -CW- |
| CWA | KCWA | Central Wisconsin Airport | Wausau, Wisconsin, United States | UTC−06:00 | Mar-Nov |
| CWB | SBCT | Afonso Pena International Airport | Curitiba, Paraná, Brazil | UTC−03:00 | Oct-Feb |
| CWC | UKLN | Chernivtsi International Airport | Chernivtsi, Ukraine | UTC+02:00 | Mar-Oct |
| CWF | KCWF | Chennault International Airport | Lake Charles, Louisiana, United States | UTC−06:00 | Mar-Nov |
| CWI | KCWI | Clinton Municipal Airport | Clinton, Iowa, United States | UTC−06:00 | Mar-Nov |
| CWL | EGFF | Cardiff Airport | Cardiff, Wales, United Kingdom | UTC±00:00 | Mar-Oct |
| CWR | YCWI | Cowarie Airport | Cowarie, South Australia, Australia | UTC+09:30 | Oct-Apr |
| CWS | | Center Island Airport (FAA: 78WA) | Center Island, Washington, United States | UTC−08:00 | Mar-Nov |
| CWT | YCWR | Cowra Airport | Cowra, New South Wales, Australia | UTC+10:00 | Oct-Apr |
| CWW | YCOR | Corowa Airport | Corowa, New South Wales, Australia | UTC+10:00 | Oct-Apr |
|
| CWX | | Cochise County Airport[1] (FAA: P33) | Willcox, Arizona, United States | UTC−07:00 | |
| -CX- |
| CXA | SVCD | Caicara del Orinoco Airport | Caicara del Orinoco, Venezuela | UTC−04:30 | |
| CXB | VGCB | Cox's Bazar Airport | Cox's Bazar, Bangladesh | UTC+06:00 | |
| CXC | | Chitina Airport | Chitina, Alaska, United States | UTC−09:00 | Mar-Nov |
| CXF | PACX | Coldfoot Airport | Coldfoot, Alaska, United States | UTC−09:00 | Mar-Nov |
| CXH | CYHC | Vancouver Harbour Flight Centre (Coal Harbour Seaplane Base) | Vancouver, British Columbia, Canada | UTC−08:00 | Mar-Nov |
| CXI | PLCH | Cassidy International Airport | Christmas Island, Kiribati | UTC+14:00 | |
| CXJ | SBCX | Caxias do Sul Airport (Hugo Cantergiani Regional Airport) | Caxias do Sul, Rio Grande do Sul, Brazil | UTC−03:00 | Oct-Feb |
| CXL | KCXL | Calexico International Airport | Calexico, California, United States | UTC−08:00 | Mar-Nov |
| CXN | HCMC | Candala Airport | Candala, Somalia | UTC+03:00 | |
| CXO | KCXO | Lone Star Executive Airport | Houston, Texas, United States | UTC−06:00 | Mar-Nov |
| CXP | WIHL | Tunggul Wulung Airport | Cilacap, Indonesia | UTC+07:00 | |
| CXQ | YCRK | Christmas Creek Airport | Christmas Creek Station, Western Australia, Australia | UTC+08:00 | |
| CXR | VVCR | Cam Ranh International Airport | Cam Ranh, Vietnam | UTC+07:00 | |
| CXT | YCHT | Charters Towers Airport | Charters Towers, Queensland, Australia | UTC+10:00 | |
| CXY | MYCC | Cat Cay Airport | Cat Cays, Bimini, Bahamas | UTC−05:00 | Mar-Nov |
| -CY- |
| CYA | MTCA | Antoine-Simon Airport | Les Cayes, Haiti | UTC−05:00 | Mar-Nov |
| CYB | MWCB | Charles Kirkconnell International Airport | Cayman Brac, Cayman Islands | UTC−05:00 | |
| CYC | | Caye Chapel Airport | Caye Chapel, Belize | UTC−06:00 | |
| CYF | PACK | Chefornak Airport (FAA: CFK) | Chefornak, Alaska, United States | UTC−09:00 | Mar-Nov |
| CYG | YCRG | Corryong Airport | Corryong, Victoria, Australia | UTC+10:00 | Oct-Apr |
| CYI | RCKU | Chiayi Airport | Chiayi, Taiwan | UTC+08:00 | |
| CYL | MHCS[3] | Coyoles Airport | Coyoles, Honduras | UTC−06:00 | |
| CYM | | Chatham Seaplane Base | Chatham, Alaska, United States | UTC−09:00 | Mar-Nov |
| CYO | MUCL | Vilo Acuña Airport | Cayo Largo del Sur, Cuba | UTC−05:00 | Mar-Nov |
| CYP | RPVC | Calbayog Airport | Calbayog, Philippines | UTC+08:00 | |
| CYR | SUCA | Colonia Airport (Laguna de los Patos Intn'l Airport) | Colonia del Sacramento, Uruguay | UTC−03:00 | Oct-Mar |
| CYS | KCYS | Cheyenne Regional Airport (Jerry Olson Field) | Cheyenne, Wyoming, United States | UTC−07:00 | Mar-Nov |
| CYT | PACY | Yakataga Airport | Yakataga, Alaska, United States | UTC−09:00 | Mar-Nov |
| CYU | RPLO | Cuyo Airport | Cuyo, Philippines | UTC+08:00 | |
| CYW | MMCY | Captain Rogelio Castillo National Airport | Celaya, Guanajuato, Mexico | UTC−06:00 | Apr-Oct |
| CYX | UESS | Chersky Airport | Chersky, Yakutia, Russia | UTC+11:00 | |
| CYZ | RPUY | Cauayan Airport | Cauayan, Philippines | UTC+08:00 | |
| -CZ- |
| CZA | MMCT | Chichen Itza International Airport | Chichen Itza, Yucatán, Mexico | UTC−06:00 | Apr-Oct |
| CZB | | Carlos Ruhl Airport | Cruz Alta, Rio Grande do Sul, Brazil | UTC−03:00 | Oct-Feb |
| CZC | | Copper Center 2 Airport (FAA: Z93) | Copper Center, Alaska, United States | UTC−09:00 | Mar-Nov |
| CZE | SVCR | José Leonardo Chirino Airport | Coro, Venezuela | UTC−04:30 | |
| CZF | PACZ | Cape Romanzof LRRS Airport | Cape Romanzof, Alaska, United States | UTC−09:00 | Mar-Nov |
| CZH | | Corozal Airport | Corozal, Belize | UTC−06:00 | |
| CZJ | | Corazón de Jesús Airport | Corazón de Jesús, Panama | UTC−05:00 | |
| CZK | KCZK | Cascade Locks State Airport | Cascade Locks, Oregon, United States | UTC−08:00 | Mar-Nov |
| CZL | DABC | Mohamed Boudiaf International Airport | Constantine, Algeria | UTC+01:00 | |
| CZM | MMCZ | Cozumel International Airport | Cozumel, Quintana Roo, Mexico | UTC−05:00 | |
| CZN | | Chisana Airport | Chisana, Alaska, United States | UTC−09:00 | Mar-Nov |
| CZO | | Chistochina Airport | Chistochina, Alaska, United States | UTC−09:00 | Mar-Nov |
| CZP | | Cape Pole Seaplane Base (FAA: Z71) | Cape Pole, Alaska, United States | UTC−09:00 | Mar-Nov |
| CZS | SBCZ | Cruzeiro do Sul International Airport | Cruzeiro do Sul, Acre, Brazil | UTC−05:00 | |
| CZT | KCZT | Dimmit County Airport | Carrizo Springs, Texas, United States | UTC−06:00 | Mar-Nov |
| CZU | SKCZ | Las Brujas Airport | Corozal, Colombia | UTC−05:00 | |
| CZW | EPCH | Częstochowa-Rudniki Airport | Częstochowa, Poland | UTC+01:00 | Mar-Oct |
| CZX | ZSCG | Changzhou Benniu Airport | Changzhou, Jiangsu, China | UTC+08:00 | |
| CZY | YUNY | Cluny Airport | Cluny, Queensland, Australia | UTC+10:00 | |