| IATA |
ICAO |
Airport name |
Location served |
|---|
| -SA- |
| SAA | KSAA | Shively Field | Saratoga, Wyoming, United States |
| SAB | TNCS | Juancho E. Yrausquin Airport | Saba, Caribbean Netherlands |
| SAC | KSAC | Sacramento Executive Airport | Sacramento, California, United States |
| SAD | KSAD | Safford Regional Airport | Safford, Arizona, United States |
| SAF | KSAF | Santa Fe Municipal Airport | Santa Fe, New Mexico, United States |
| SAH | OYSN | Sana'a International Airport (El Rahaba Airport) | Sana'a, Yemen |
| SAK | BIKR | Sauðárkrókur Airport | Sauðárkrókur, Iceland |
| SAL | MSLP | Monseñor Óscar Arnulfo Romero International Airport | San Salvador, El Salvador |
| SAM | | Salamo Airport[1] | Salamo, Papua New Guinea |
| SAN | KSAN | San Diego International Airport | San Diego, California, United States |
| SAO[1] | | metropolitan area1 | São Paulo, São Paulo, Brazil |
| SAP | MHLM | Ramón Villeda Morales International Airport | San Pedro Sula, Honduras |
| SAQ | MYAN | San Andros Airport[1] | Nicholls Town, Andros, Bahamas |
| SAR | KSAR | Sparta Community Airport (Hunter Field) | Sparta, Illinois, United States |
| SAS | KSAS | Salton Sea Airport | Salton City, California, United States |
| SAT | KSAT | San Antonio International Airport | San Antonio, Texas, United States |
| SAU | WATS | Tardamu Airport | Savu (Sawu), Indonesia |
| SAV | KSAV | Savannah/Hilton Head International Airport | Savannah, Georgia, United States |
| SAW | LTFJ | Sabiha Gökçen International Airport | Istanbul, Turkey |
| SAX | | Sambú Airport[1] | Sambú, Panama |
| SAY | LIQS | Siena-Ampugnano Airport | Siena, Tuscany, Italy |
| SAZ | GLST | Sasstown Airport | Sasstown, Liberia |
| -SB- |
| SBA | KSBA | Santa Barbara Municipal Airport | Santa Barbara, California, United States |
| SBB | SVSB | Santa Bárbara de Barinas Airport[1] | Santa Bárbara, Venezuela |
| SBC | | Selbang Airport[1] | Selbang, Papua New Guinea |
| SBD | KSBD | San Bernardino International Airport | San Bernardino, California, United States |
| SBE | AYSA | Suabi Airport[1] | Suabi, Papua New Guinea |
| SBF | OADS | Sardeh Band Airport | Band-e Sardeh Dam, Afghanistan |
| SBG | WITN | Maimun Saleh Airport[1] | Sabang, Indonesia |
| SBH | TFFJ | Gustaf III Airport | Gustavia, Saint Barthélemy |
| SBI | GUSB | Sambailo Airport | Koundara, Guinea |
| SBJ | SNMX | São Mateus Airport[1] | São Mateus, Espírito Santo, Brazil |
| SBK | LFRT | Saint-Brieuc – Armor Airport | Saint-Brieuc, Brittany, France |
| SBL | SLSA | Santa Ana del Yacuma Airport | Santa Ana del Yacuma, Bolivia |
| SBM | KSBM | Sheboygan County Memorial Airport | Sheboygan, Wisconsin, United States |
| SBN | KSBN | South Bend International Airport | South Bend, Indiana, United States |
| SBO | | Salina-Gunnison Airport[1] (FAA: 44U) | Salina / Gunnison, Utah, United States |
| SBP | KSBP | San Luis Obispo County Regional Airport (McChesney Field) | San Luis Obispo, California, United States |
| SBQ | OPSB | Sibi Airport[1] | Sibi, Pakistan |
| SBR | YSII | Saibai Island Airport[1] | Saibai Island, Queensland, Australia |
| SBS | KSBS | Steamboat Springs Airport (Bob Adams Field) | Steamboat Springs, Colorado, United States |
| SBT | USDA | Sabetta International Airport[1] | Sabetta, Yamalo-Nenets Autonomous Okrug, Russia |
| SBU | FASB | Springbok Airport | Springbok, South Africa |
| SBV | AYSH | Sabah Airport[1] | Sabah, Papua New Guinea |
| SBW | WBGS | Sibu Airport | Sibu, Sarawak, Malaysia |
| SBX | KSBX | Shelby Airport | Shelby, Montana, United States |
| SBY | KSBY | Salisbury–Ocean City–Wicomico Regional Airport | Salisbury / Ocean City, Maryland, United States |
| SBZ | LRSB | Sibiu International Airport | Sibiu, Romania |
| -SC- |
| SCA | | Santa Catalina Airport[1] | Santa Catalina, Colombia |
| SCB | KSCB | Scribner State Airport | Scribner, Nebraska, United States |
| SCC | PASC | Deadhorse Airport | Prudhoe Bay / Deadhorse, Alaska, United States |
| SCD | MHUL | Sulaco Airport | Sulaco, Honduras |
| SCE | KUNV | University Park Airport (FAA: UNV) | State College, Pennsylvania, United States |
| SCF | KSDL | Scottsdale Airport (FAA: SDL) | Phoenix / Scottsdale, Arizona, United States |
| SCG | YSPK | Spring Creek Airport[1] | Spring Creek, Queensland, Australia |
| SCH | KSCH | Schenectady County Airport | Schenectady, New York, United States |
| SCI | SVPM | Paramillo Airport[1] | San Cristóbal, Venezuela |
| SCK | KSCK | Stockton Metropolitan Airport | Stockton, California, United States |
| SCL | SCEL | Comodoro Arturo Merino Benítez International Airport | Santiago, Chile |
| SCM | PACM | Scammon Bay Airport | Scammon Bay, Alaska, United States |
| SCN | EDDR | Saarbrücken Airport | Saarbrücken, Saarland, Germany |
| SCO | UATE | Aktau Airport | Aktau, Kazakhstan |
| SCP | LFNC | Mont-Dauphin - Saint-Crépin Airport[1] | Mont-Dauphin, Provence-Alpes-Côte d'Azur, France |
| SCQ | LEST | Santiago de Compostela Airport | Santiago de Compostela, Galicia, Spain |
| SCS | EGPM | Scatsta Airport | Shetland Islands, Scotland, United Kingdom |
| SCT | OYSQ | Socotra Airport[1] | Socotra, Yemen |
| SCU | MUCU | Antonio Maceo International Airport | Santiago de Cuba, Cuba |
| SCV | LRSV | Suceava International Airport (Ștefan cel Mare Int'l) | Suceava, Romania |
| SCW | UUYY | Syktyvkar Airport | Syktyvkar, Komi Republic, Russia |
| SCX | MMSZ | Salina Cruz Airport | Salina Cruz, Oaxaca, Mexico |
| SCY | SEST | San Cristóbal Airport | San Cristóbal Island, Galápagos Islands, Ecuador |
| SCZ | AGGL | Santa Cruz/Graciosa Bay/Luova Airport[1] | Santa Cruz Islands, Solomon Islands |
| -SD- |
| SDB | FALW | Air Force Base Langebaanweg[1] | Saldanha Bay, South Africa |
| SDC | | Sand Creek Airport | Sand Creek Village, Guyana |
| SDD | FNUB | Lubango Mukanka Airport | Lubango, Angola |
| SDE | SANE | Vicecomodoro Ángel de la Paz Aragonés Airport | Santiago del Estero, Santiago del Estero, Argentina |
| SDF | KSDF | Louisville International Airport (Standiford Field) | Louisville, Kentucky, United States |
| SDG | OICS | Sanandaj Airport[1] | Sanandaj, Iran |
| SDH | MHSR | Santa Rosa de Copán Airport[1] | Santa Rosa de Copán, Honduras |
| SDI | AYSD | Saidor Airport[1] | Saidor, Papua New Guinea |
| SDJ | RJSS | Sendai Airport | Sendai, Honshu, Japan |
| SDK | WBKS | Sandakan Airport | Sandakan, Sabah, Malaysia |
| SDL | ESNN | Sundsvall-Timrå Airport (Midlanda Airport) | Sundsvall / Härnösand, Sweden |
| SDM | KSDM | Brown Field Municipal Airport | San Diego, California, United States |
| SDN | ENSD | Sandane Airport, Anda | Sandane, Norway |
| SDP | PASD | Sand Point Airport | Sand Point, Alaska, United States |
| SDQ | MDSD | Las Américas International Airport | Santo Domingo, Dominican Republic |
| SDR | LEXJ | Santander Airport | Santander, Cantabria, Spain |
| SDS | RJSD | Sado Airport[1] | Sado, Niigata, Japan |
| SDT | OPSS | Saidu Sharif Airport[1] | Saidu Sharif, Pakistan |
| SDU | SBRJ | Santos Dumont Airport | Rio de Janeiro, Rio de Janeiro, Brazil |
| SDV | LLSD | Sde Dov Airport | Tel Aviv, Israel |
| SDX | KSEZ | Sedona Airport (FAA: SEZ) | Sedona, Arizona, United States |
| SDY | KSDY | Sidney–Richland Municipal Airport | Sidney, Montana, United States |
| SDZ[1] | | metropolitan area2 | Shetland Islands, Scotland, United Kingdom |
| -SE- |
| SEA | KSEA | Seattle–Tacoma International Airport | Seattle, Washington, United States |
| SEB | HLLS | Sabha Airport[1] | Sabha (Sebha), Libya |
| SED | LLSD | Sdom Airfield[1] (Hashnayim Airfield) | Neve Zohar (Sedom), Israel |
| SEE | KSEE | Gillespie Field | San Diego, California, United States |
| SEF | KSEF | Sebring Regional Airport | Sebring, Florida, United States |
| SEG | KSEG | Penn Valley Airport | Selinsgrove, Pennsylvania, United States |
| SEH | WAJS | Senggeh Airport | Senggeh, Indonesia |
| SEK | UESK | Srednekolymsk Airport | Srednekolymsk, Yakutia, Russia |
| SEL[1] | | metropolitan area3 | Seoul, South Korea |
| SEM | KSEM | Craig Field | Selma, Alabama, United States |
| SEN | EGMC | London Southend Airport | London / Southend, England United Kingdom |
| SEO | DISG | Séguéla Airport[1] | Séguéla, Ivory Coast |
| SEP | KSEP | Stephenville Clark Regional Airport | Stephenville, Texas, United States |
| SEQ | WIBS | Sei Pakning Airport | Bengkalis, Indonesia |
| SER | KSER | Freeman Municipal Airport | Seymour, Indiana, United States |
| SEU | HTSN | Seronera Airstrip[1] | Seronera, Tanzania |
| SEV | | Severodonetsk Airport[1] | Severodonetsk, Ukraine |
| SEW | | Siwa Oasis North Airport[1] | Siwa Oasis, Egypt |
| SEY | GQNS | Sélibaby Airport | Sélibaby, Mauritania |
| SEZ | FSIA | Seychelles International Airport | Mahé, Seychelles |
| -SF- |
| SFA | DTTX | Sfax–Thyna International Airport | Sfax, Tunisia |
| SFB | KSFB | Orlando Sanford International Airport | Orlando, Florida, United States |
| SFC | TFFC | Saint-François Airport[1] | Saint-François, Guadeloupe |
| SFD | SVSR | Las Flecheras Airport | San Fernando de Apure, Venezuela |
| SFE | RPUS | San Fernando Airport | San Fernando, Philippines |
| SFF | KSFF | Felts Field | Spokane, Washington, United States |
| SFG | TFFG | L'Espérance Airport[1] (Grand Case Airport) | Grand Case, Saint Martin |
| SFH | MMSF | San Felipe International Airport | San Felipe, Baja California, Mexico |
| SFJ | BGSF | Kangerlussuaq Airport | Kangerlussuaq, Greenland |
| SFK | SNSW | Soure Airport[1] | Soure, Pará, Brazil |
| SFL | GVSF | São Filipe Airport | São Filipe, Fogo, Cape Verde |
| SFM | KSFM | Sanford Seacoast Regional Airport | Sanford, Maine, United States |
| SFN | SAAV | Sauce Viejo Airport[1] | Santa Fe de la Vera Cruz, Santa Fe, Argentina |
| SFO | KSFO | San Francisco International Airport | San Francisco, California, United States |
| SFQ | LTCH | Şanlıurfa Airport | Şanlıurfa, Turkey |
| SFS | RPLB | Subic Bay International Airport | Subic Bay, Philippines |
| SFT | ESNS | Skellefteå Airport | Skellefteå, Sweden |
| SFU | | Safia Airport[1] | Safia, Papua New Guinea |
| SFV | | Santa Fé do Sul Airport[1] | Santa Fé do Sul, São Paulo, Brazil |
| SFX | | Macagua Airport[1] | San Félix, Venezuela |
| SFY[1] | | metropolitan area4 | Springfield, Massachusetts, United States |
| SFZ | KSFZ | North Central State Airport | Pawtucket, Rhode Island, United States |
| -SG- |
| SGA | OASN | Sheghnan Airport | Shighnan, Afghanistan |
| SGB | | Singaua Airport[1] | Singaua, Papua New Guinea |
| SGC | USRR | Surgut International Airport | Surgut, Khanty-Mansi Autonomous Okrug, Russia |
| SGD | EKSB | Sønderborg Airport | Sønderborg, Denmark |
| SGE | EDGS | Siegerland Airport | Siegen, North Rhine-Westphalia, Germany |
| SGF | KSGF | Springfield–Branson National Airport | Springfield, Missouri, United States |
| SGH | KSGH | Springfield–Beckley Municipal Airport | Springfield, Ohio, United States |
| SGI | OPSR | PAF Base Mushaf[1] | Sargodha, Pakistan |
| SGJ | | Sagarai Airport[1] | Sagarai, Papua New Guinea |
| SGK | AYSK | Sangapi Airport | Sangapi, Papua New Guinea |
| SGL | RPLS | Danilo Atienza Air Base | Manila, Philippines |
| SGM | | San Ignacio Airfield[1] | San Ignacio, Baja California Sur, Mexico |
| SGN | VVTS | Tan Son Nhat International Airport | Ho Chi Minh City, Vietnam |
| SGO | YSGE | St George Airport[1] | St George, Queensland, Australia |
| SGP | YSHG | Shay Gap Airport[1] | Shay Gap, Western Australia, Australia |
| SGQ | WRLA | Sangkimah Airport[1] | Sangatta, Indonesia |
| SGR | KSGR | Sugar Land Regional Airport | Houston / Sugar Land, Texas, United States |
| SGT | KSGT | Stuttgart Municipal Airport | Stuttgart, Arkansas, United States |
| SGU | KSGU | St. George Regional Airport | St. George, Utah, United States |
| SGV | SAVS | Sierra Grande Airport[1] | Sierra Grande, Río Negro, Argentina |
| SGW | | Saginaw Seaplane Base[1] (FAA: A23) | Saginaw Bay, Alaska, United States |
| SGX | HTSO | Songea Airport[1] | Songea, Tanzania |
| SGY | PAGY | Skagway Airport | Skagway, Alaska, United States |
| SGZ | VTSH | Songkhla Airport[1] | Songkhla, Thailand |
| -SH- |
| SHA | ZSSS | Shanghai Hongqiao International Airport | Shanghai, China |
| SHB | RJCN | Nakashibetsu Airport | Nakashibetsu, Hokkaido, Japan |
| SHC | | Shire Airport[1] | Shire (Inda Selassie), Ethiopia |
| SHD | KSHD | Shenandoah Valley Regional Airport | Staunton / Waynesboro / Harrisonburg, Virginia, United States |
| SHE | ZYTX | Shenyang Taoxian International Airport | Shenyang, Liaoning, China |
| SHF | ZWHZ | Shihezi Huayuan Airport | Shihezi, Xinjiang, China |
| SHG | PAHG | Shungnak Airport | Shungnak, Alaska, United States |
| SHH | PASH | Shishmaref Airport | Shishmaref, Alaska, United States |
| SHI | RORS | Shimojishima Airport | Shimoji-shima, Miyako Islands, Japan |
| SHJ | OMSJ | Sharjah International Airport | Sharjah, United Arab Emirates |
| SHK | FXSH | Sehonghong Airport[1] | Sehonghong, Lesotho |
| SHL | VEBI | Shillong Airport (Barapani Airport) | Shillong, Meghalaya, India |
| SHM | RJBD | Nanki–Shirahama Airport | Shirahama, Honshu, Japan |
| SHN | KSHN | Sanderson Field | Shelton, Washington, United States |
| SHO | FDSK | King Mswati III International Airport[1] (Sikhuphe Int'l) | Manzini, Swaziland |
| SHQ | YSPT | Southport Airport[1] | Southport, Queensland, Australia |
| SHR | KSHR | Sheridan County Airport | Sheridan, Wyoming, United States |
| SHS | ZHSS | Shashi Airport | Jingzhou, Hubei, China |
| SHT | YSHT | Shepparton Airport | Shepparton, Victoria, Australia |
| SHU | YSMP | Smith Point Airport[1] | Smith Point, Northern Territory, Australia |
| SHV | KSHV | Shreveport Regional Airport | Shreveport, Louisiana, United States |
| SHW | OESH | Sharurah Domestic Airport | Sharurah, Saudi Arabia |
| SHX | PAHX | Shageluk Airport | Shageluk, Alaska, United States |
| SHY | HTSY | Shinyanga Airport[1] | Shinyanga, Tanzania |
| SHZ | FXSS | Seshutes Airport[1] | Seshote, Lesotho |
| -SI- |
| SIA | ZLSN | Xi'an Xiguan Airport | Xi'an, Shaanxi, China |
| SIB | FCBS | Sibiti Airport[1] | Sibiti, Republic of the Congo |
| SIC | | San José Airport[1] | San José Island, Panama |
| SID | GVAC | Amílcar Cabral International Airport | Sal, Cape Verde |
| SIE | LPSI | Sines Airport[1] | Sines, Portugal |
| SIF | VNSI | Simara Airport[1] | Simara, Nepal |
| SIG | TJIG | Fernando Luis Ribas Dominicci Airport | San Juan, Puerto Rico |
| SIH | VNDT | Silgadhi Airport[1] | Dipayal Silgadhi, Nepal |
| SII | GMMF | Sidi Ifni Airport (Sania Ramel Airport) | Sidi Ifni, Morocco |
| SIJ | BISI | Siglufjörður Airport | Siglufjörður, Iceland |
| SIK | KSIK | Sikeston Memorial Municipal Airport | Sikeston, Missouri, United States |
| SIL | | Sila Airport[1] | Sila, Papua New Guinea |
| SIM | | Simbai Airport[1] | Simbai, Papua New Guinea |
| SIN | WSSS | Singapore Changi Airport | Singapore |
| SIO | YSMI | Smithton Airport | Smithton, Tasmania, Australia |
| SIP | UKFF | Simferopol International Airport | Simferopol, Ukraine |
| SIQ | WIDS | Dabo Singkep Airport[1] | Singkep, Indonesia |
| SIR | LSGS | Sion Airport | Sion, Switzerland |
| SIS | FASS | Sishen Airport | Dingleton, South Africa |
| SIT | PASI | Sitka Rocky Gutierrez Airport | Sitka, Alaska, United States |
| SIU | MNSI | Siuna Airport | Siuna, Nicaragua |
| SIV | KSIV | Sullivan County Airport | Sullivan, Indiana, United States |
| SIW | WIMP | Sibisa Airport[1] | Parapat, Indonesia |
| SIX | YSGT | Singleton Airport[1] | Singleton, New South Wales, Australia |
| SIY | KSIY | Siskiyou County Airport | Montague / Yreka, California, United States |
| SIZ | | Sissano Airport[1] | Sissano, Papua New Guinea |
| -SJ- |
| SJA | SPJN | San Juan de Marcona Airport[1] | San Juan de Marcona, Peru |
| SJB | SLJO | San Joaquín Airport[1] | San Joaquín, Bolivia |
| SJC | KSJC | San Jose International Airport | San Jose, California, United States |
| SJD | MMSD | Los Cabos International Airport | San José del Cabo, Baja California Sur, Mexico |
| SJE | SKSJ | Jorge Enrique González Torres Airport | San José del Guaviare, Colombia |
| SJF | | Cruz Bay Seaplane Base[1] | Saint John, United States Virgin Islands |
| SJG | | San Pedro de Jagua Airport[1] | San Pedro de Jagua, Colombia |
| SJH | | San Juan del Cesar Airport[1] | San Juan del Cesar, Colombia |
| SJI | RPUH | San Jose Airport | San Jose, Philippines |
| SJJ | LQSA | Sarajevo International Airport | Sarajevo, Bosnia and Herzegovina |
| SJK | SBSJ | Professor Urbano Ernesto Stumpf Airport | São José dos Campos, São Paulo, Brazil |
| SJL | SBUA | São Gabriel da Cachoeira Airport[1] | São Gabriel da Cachoeira, Amazonas, Brazil |
| SJN | KSJN | St. Johns Industrial Air Park | St. Johns, Arizona, United States |
| SJO | MROC | Juan Santamaría International Airport | San José, Costa Rica |
| SJP | SBSR | Prof. Eribelto Manoel Reino State Airport | São José do Rio Preto, São Paulo, Brazil |
| SJQ | FLSS | Sesheke Airport[1] | Sesheke, Zambia |
| SJR | | San Juan de Urabá Airport[1] | San Juan de Urabá, Colombia |
| SJS | SLJE | San José de Chiquitos Airport[1] | San José de Chiquitos, Bolivia |
| SJT | KSJT | San Angelo Regional Airport (Mathis Field) | San Angelo, Texas, United States |
| SJU | TJSJ | Luis Muñoz Marín International Airport | San Juan, Puerto Rico |
| SJV | SLJV | San Javier Airport[1] | San Javier, Bolivia |
| SJW | ZBSJ | Shijiazhuang Zhengding International Airport | Shijiazhuang, Hebei, China |
| SJX | | Sarteneja Airport | Sarteneja, Belize |
| SJY | EFSI | Seinäjoki Airport | Seinäjoki, Finland |
| SJZ | LPSJ | São Jorge Airport | São Jorge Island, Azores, Portugal |
| -SK- |
| SKA | KSKA | Fairchild Air Force Base | Spokane, Washington, United States |
| SKB | TKPK | Robert L. Bradshaw International Airport | Saint Kitts, Saint Kitts and Nevis |
| SKC | AYSU | Suki Airport[1] | Suki, Papua New Guinea |
| SKD | UTSS | Samarkand International Airport[1] | Samarkand, Uzbekistan |
| SKE | ENSN | Skien Airport, Geiteryggen | Skien, Norway |
| SKF | KSKF | Kelly Field Annex / Lackland Air Force Base | San Antonio, Texas, United States |
| SKG | LGTS | Thessaloniki Airport "Macedonia" | Thessaloniki, Greece |
| SKH | VNSK | Surkhet Airport[1] | Surkhet, Nepal |
| SKI | DABP | Skikda Airport | Skikda, Algeria |
| SKK | PFSH | Shaktoolik Airport (FAA: 2C7) | Shaktoolik, Alaska, United States |
| SKL | EGEI | Broadford Airfield[1] | Isle of Skye, Scotland, United Kingdom |
| SKM | | Skeldon Airport[1] | Skeldon, Guyana |
| SKN | ENSK | Stokmarknes Airport, Skagen | Stokmarknes, Norway |
| SKO | DNSO | Sadiq Abubakar III International Airport[1] | Sokoto, Nigeria |
| SKP | LWSK | Skopje "Alexander the Great" Airport | Skopje, Macedonia |
| SKQ | FXSK | Sekake Airport[1] | Sekake, Lesotho |
| SKR | HASK | Shakiso Airport[1] | Shakiso, Ethiopia |
| SKS | EKSP | Vojens Airport (Skrydstrup Airport) | Vojens, Denmark |
| SKT | OPST | Sialkot International Airport | Sialkot, Pakistan |
| SKU | LGSY | Skyros Island National Airport | Skyros, Greece |
| SKV | HESC | St. Catherine International Airport | Saint Catherine, Egypt |
| SKW | PASW | Skwentna Airport | Skwentna, Alaska, United States |
| SKX | UWPS | Saransk Airport | Saransk, Mordovia, Russia |
| SKY | KSKY | Griffing Sandusky Airport | Sandusky, Ohio, United States |
| SKZ | OPSK | Sukkur Airport | Sukkur, Pakistan |
| -SL- |
| SLA | SASA | Martín Miguel de Güemes International Airport | Salta, Salta, Argentina |
| SLB | KSLB | Storm Lake Municipal Airport | Storm Lake, Iowa, United States |
| SLC | KSLC | Salt Lake City International Airport | Salt Lake City, Utah, United States |
| SLD | LZSL | Sliač Airport | Sliač, Slovakia |
| SLE | KSLE | McNary Field | Salem, Oregon, United States |
| SLF | OESL | Sulayel Airport[1] | As Sulayyil (Sulayel), Saudi Arabia |
| SLG | KSLG | Smith Field | Siloam Springs, Arkansas, United States |
| SLH | NVSC | Vanua Lava Airport | Sola, Vanua Lava, Vanuatu |
| SLI | FLSW | Solwezi Airport | Solwezi, Zambia |
| SLJ | YSOL | Solomon Airport | Karijini National Park, Western Australia, Australia |
| SLK | KSLK | Adirondack Regional Airport | Saranac Lake, New York, United States |
| SLL | OOSA | Salalah International Airport | Salalah, Oman |
| SLM | LESA | Salamanca Airport | Salamanca, Castile and León, Spain |
| SLN | KSLN | Salina Regional Airport | Salina, Kansas, United States |
| SLO | KSLO | Salem–Leckrone Airport | Salem, Illinois, United States |
| SLP | MMSP | Ponciano Arriaga International Airport | San Luis Potosí City, San Luis Potosí, Mexico |
| SLQ | PASL | Sleetmute Airport | Sleetmute, Alaska, United States |
| SLR | KSLR | Sulphur Springs Municipal Airport | Sulphur Springs, Texas, United States |
| SLS | LBSS | Silistra Airfield | Silistra, Bulgaria |
| SLT | KANK | Harriet Alexander Field (FAA: ANK) | Salida, Colorado, United States |
| SLU | TLPC | George F. L. Charles Airport | Castries, Saint Lucia |
| SLV | VISM | Shimla Airport | Simla, Himachal Pradesh, India |
| SLW | MMIO | Plan de Guadalupe International Airport | Saltillo, Coahuila, Mexico |
| SLX | MBSY | Salt Cay Airport[1] | Salt Cay, Turks and Caicos Islands |
| SLY | USDD | Salekhard Airport | Salekhard, Yamalo-Nenets Autonomous Okrug, Russia |
| SLZ | SBSL | Marechal Cunha Machado International Airport | São Luís, Maranhão, Brazil |
| -SM- |
| SMA | LPAZ | Santa Maria Airport | Santa Maria Island, Azores, Portugal |
| SMB | SCSB | Franco Bianco Airport[1] | Cerro Sombrero, Chile |
| SMC | | Santa María Airport[1] | Santa María, Colombia |
| SMD | KSMD | Smith Field | Fort Wayne, Indiana, United States |
| SME | KSME | Lake Cumberland Regional Airport | Somerset, Kentucky, United States |
| SMF | KSMF | Sacramento International Airport | Sacramento, California, United States |
| SMG | SPMR | Santa María Airport[1] | Santa María del Mar, Peru |
| SMH | AYSP | Sapmanga Airport | Sapmanga, Papua New Guinea |
| SMI | LGSM | Samos International Airport "Aristarchos of Samos" | Samos, Greece |
| SMJ | | Sim Airport[1] | Sim, Papua New Guinea |
| SMK | PAMK | St. Michael Airport | St. Michael, Alaska, United States |
| SML | MYLS | Stella Maris Airport[1] | Stella Maris, Long Island, Bahamas |
| SMM | WBKA | Semporna Airport | Semporna, Sabah, Malaysia |
| SMN | KSMN | Lemhi County Airport | Salmon, Idaho, United States |
| SMO | KSMO | Santa Monica Municipal Airport | Santa Monica, California, United States |
| SMP | | Stockholm Airport[1] | Stockholm, Papua New Guinea |
| SMQ | WAOS | H. Asan Airport | Sampit, Indonesia |
| SMR | SKSM | Simón Bolívar International Airport | Santa Marta, Colombia |
| SMS | FMMS | Sainte Marie Airport | Île Sainte-Marie, Madagascar |
| SMU | PASP | Sheep Mountain Airport | Sheep Mountain, Alaska, United States |
| SMV | LSZS | Samedan Airport (Engadin Airport) | St. Moritz, Switzerland |
| SMW | GMMA | Smara Airport[1] | Smara, Morocco |
| SMX | KSMX | Santa Maria Public Airport (Capt. G. Allan Hancock Field) | Santa Maria, California, United States |
| SMY | GOTS | Simenti Airport | Simenti, Senegal |
| SMZ | SMST | Stoelmans Eiland Airstrip | Stoelmans Eiland (Stoelmanseiland), Suriname |
| -SN- |
| SNA | KSNA | John Wayne Airport (Orange County Airport) | Santa Ana, California, United States |
| SNB | YSNB | Snake Bay Airport | Milikapiti, Northern Territory, Australia |
| SNC | SESA | General Ulpiano Paez Airport | Salinas, Ecuador |
| SNE | GVSN | Preguiça Airport | São Nicolau, Cape Verde |
| SNF | SVSP | Sub Teniente Nestor Arias Airport[1] | San Felipe, Venezuela |
| SNG | SLSI | Capitán Av. Juan Cochamanidis Airport[1] | San Ignacio de Velasco, Bolivia |
| SNH | YSPE | Stanthorpe Airport | Stanthorpe, Queensland, Australia |
| SNI | GLGE | Greenville/Sinoe Airport (R.E. Murray Airport) | Greenville, Liberia |
| SNJ | MUSJ | San Julián Air Base[1] | Guane, Cuba |
| SNK | KSNK | Winston Field | Snyder, Texas, United States |
| SNL | KSNL | Shawnee Regional Airport | Shawnee, Oklahoma, United States |
| SNM | SLSM | San Ignacio de Moxos Airport[1] | San Ignacio de Moxos, Bolivia |
| SNN | EINN | Shannon Airport | Shannon, Ireland |
| SNO | VTUI | Sakon Nakhon Airport[1] | Sakon Nakhon, Thailand |
| SNP | PASN | St. Paul Island Airport | St. Paul Island, Alaska, United States |
| SNQ | | San Quintín Military Airstrip[1] | San Quintín, Baja California, Mexico |
| SNR | LFRZ | Saint-Nazaire Montoir Airport | Saint-Nazaire, Pays de la Loire, France |
| SNS | KSNS | Salinas Municipal Airport | Salinas, California, United States |
| SNT | SKRU | Las Cruces Airport[1] | Sabana de Torres, Colombia |
| SNU | MUSC | Abel Santamaría Airport | Santa Clara, Cuba |
| SNV | SVSE | Santa Elena de Uairén Airport[1] | Santa Elena de Uairén, Venezuela |
| SNW | VYTD | Thandwe Airport[1] | Thandwe, Myanmar |
| SNY | KSNY | Sidney Municipal Airport (Lloyd W. Carr Field) | Sidney, Nebraska, United States |
| SNZ | SBSC | Santa Cruz Air Force Base | Rio de Janeiro, Rio de Janeiro, Brazil |
| -SO- |
| SOA | | Sóc Trăng Airfield[1] | Sóc Trăng, Vietnam |
| SOB | LHSM | Hévíz–Balaton Airport | Hévíz, Hungary |
| SOC | WARQ | Adisumarmo International Airport | Surakarta (Solo), Indonesia |
| SOD | SDCO | Bertram Luiz Leupolz–Sorocaba Airport | Sorocaba, São Paulo, Brazil |
| SOE | FCOS | Souanké Airport[1] | Souanké, Republic of the Congo |
| SOF | LBSF | Sofia Airport | Sofia, Bulgaria |
| SOG | ENSG | Sogndal Airport, Haukåsen | Sogndal, Norway |
| SOJ | ENSR | Sørkjosen Airport | Sørkjosen, Norway |
| SOK | FXSM | Semonkong Airport | Semonkong, Lesotho |
| SOL | | Solomon State Field Airport[1] (FAA: AK26) | Solomon, Alaska, United States |
| SOM | SVST | San Tomé Airport | San Tomé, Venezuela |
| SON | NVSS | Santo-Pekoa International Airport | Luganville, Vanuatu |
| SOO | ESNY | Söderhamn Airport[1] (Helsinge Airport) | Söderhamn, Sweden |
| SOP | KSOP | Moore County Airport | Pinehurst / Southern Pines, North Carolina, United States |
| SOQ | WASS | Dominique Edward Osok Airport[1] | Sorong, Indonesia |
| SOT | EFSO | Sodankylä Airfield[1] | Sodankylä, Finland |
| SOU | EGHI | Southampton Airport | Southampton, England, United Kingdom |
| SOV | PASO | Seldovia Airport | Seldovia, Alaska, United States |
| SOW | KSOW | Show Low Regional Airport | Show Low, Arizona, United States |
| SOX | SKSO | Alberto Lleras Camargo Airport[1] | Sogamoso, Colombia |
| SOY | EGER | Stronsay Airport | Stronsay, Scotland, United Kingdom |
| SOZ | LFKS | Solenzara Air Base[1] | Sari-Solenzara, Corsica, France |
| -SP- |
| SPA | KSPA | Spartanburg Downtown Memorial Airport | Spartanburg, South Carolina, United States |
| SPB | | Charlotte Amalie Harbor Seaplane Base (St. Thomas Seaplane Base) (FAA: VI22) | St. Thomas Island, United States Virgin Islands |
| SPC | GCLA | La Palma Airport | La Palma, Canary Islands, Spain |
| SPD | VGSD | Saidpur Airport | Saidpur, Bangladesh |
| SPE | WBKO | Sepulot Airport[1] | Sapulut, Sabah, Malaysia |
| SPF | KSPF | Black Hills Airport (Clyde Ice Field) | Spearfish, South Dakota, United States |
| SPG | KSPG | Albert Whitted Airport | St. Petersburg, Florida, United States |
| SPH | | Sopu Airport | Sopu, Papua New Guinea |
| SPI | KSPI | Abraham Lincoln Capital Airport | Springfield, Illinois, United States |
| SPJ | LGSP | Sparti Airport | Sparti (Sparta), Greece |
| SPK[1] | | metropolitan area5 | Sapporo, Hokkaido, Japan |
| SPM | ETAD | Spangdahlem Air Base | Spangdahlem, Rhineland-Palatinate, Germany |
| SPN | PGSN | Saipan International Airport (Francisco C. Ada Int'l) (FAA: GSN) | Saipan, Northern Mariana Islands |
| SPP | FNME | Menongue Airport[1] | Menongue, Angola |
| SPR | | San Pedro Airport | San Pedro Town, Belize |
| SPS | KSPS | Sheppard Air Force Base / Wichita Falls Municipal Airport | Wichita Falls, Texas, United States |
| SPT | | Sipitang Airstrip[1] | Sipitang, Sabah, Malaysia |
| SPU | LDSP | Split Airport | Split, Croatia |
| SPV | | Sepik Plains Airport[1] | Sepik Plains, Papua New Guinea |
| SPW | KSPW | Spencer Municipal Airport | Spencer, Iowa, United States |
| SPY | DISP | San Pédro Airport[1] | San-Pédro, Ivory Coast |
| SPZ | KASG | Springdale Municipal Airport (FAA: ASG) | Springdale, Arkansas, United States |
| -SQ- |
| SQA | KIZA | Santa Ynez Airport (FAA: IZA) | Santa Ynez, California, United States |
| SQB | | Santa Ana Airport[1] | Piedras, Colombia |
| SQC | YSCR | Southern Cross Airport[1] | Southern Cross, Western Australia, Australia |
| SQD | | Shangrao Sanqingshan Airport[1] | Shangrao, Jiangxi, China |
| SQE | | San Luis de Palenque Airport[1] | San Luis de Palenque, Colombia |
| SQG | WIOS | Sintang Airport[1] (Susilo Airport) | Sintang, Indonesia |
| SQH | VVNS | Nà Sản Airport[1] | Sơn La, Vietnam |
| SQI | KSQI | Whiteside County Airport (Jos. H. Bittorf Field) | Sterling / Rock Falls, Illinois, United States |
| SQJ | | Sanming Shaxian Airport[1] | Sanming, Fujian, China |
| SQK | | Sidi Barrani Airport[1] | Sidi Barrani, Egypt |
| SQL | KSQL | San Carlos Airport | San Carlos, California, United States |
| SQM | SWUA | São Miguel do Araguaia Airport[1] | São Miguel do Araguaia, Goiás, Brazil |
| SQN | WAPN | Sanana Airport[1] | Sanana Island, Indonesia |
| SQO | ESUD | Storuman Airport[1] | Storuman, Sweden |
| SQQ | EYSA | Šiauliai International Airport | Šiauliai, Lithuania |
| SQR | WAWS | Soroako Airport | Soroako, Indonesia |
| SQS | | Matthew Spain Airport[1] | San Ignacio, Belize |
| SQT | | China Strait Airstrip[1] | Samarai, Papua New Guinea |
| SQU | SPOA | Saposoa Airport[1] | Saposoa, Peru |
| SQV | | Sequim Valley Airport (FAA: W28) | Sequim, Washington, United States |
| SQW | EKSV | Skive Airport | Skive, Denmark |
| SQX | SSOE | Hélio Wasum Airport | São Miguel do Oeste, Santa Catarina, Brazil |
| SQY | SSRU | São Lourenço do Sul Airport[1] | São Lourenço do Sul, Rio Grande do Sul, Brazil |
| SQZ | EGXP | RAF Scampton[1] | Scampton, England, United Kingdom |
| -SR- |
| SRA | SSZR | Santa Rosa Airport[1] | Santa Rosa, Rio Grande do Sul, Brazil |
| SRB | SLSR | Santa Rosa Airport[1] | Santa Rosa de Yacuma, Bolivia |
| SRC | KSRC | Searcy Municipal Airport | Searcy, Arkansas, United States |
| SRD | SLRA | San Ramón Airport[1] | San Ramón, Bolivia |
| SRE | SLSU | Juana Azurduy de Padilla International Airport | Sucre, Bolivia |
| SRF | | San Rafael Airport (Hamilton Field) | San Rafael, California, United States |
| SRG | WARS | Achmad Yani International Airport | Semarang, Indonesia |
| SRH | FTTA | Sarh Airport | Sarh, Chad |
| SRI | WALS | Temindung Airport | Samarinda, Indonesia |
| SRJ | SLSB | Capitán Germán Quiroga Guardia Airport | San Borja, Bolivia |
| SRL | | Palo Verde Airport[1] | Santa Rosalía, Baja California Sur, Mexico |
| SRM | | Sandringham Station Airport[1] | Sandringham Station, Queensland, Australia |
| SRN | YSRN | Strahan Airport[1] | Strahan, Tasmania, Australia |
| SRO | | Santana Ramos Airport[1] | Santana Ramos, Colombia |
| SRP | ENSA | Stord Airport, Sørstokken | Stord, Norway |
| SRQ | KSRQ | Sarasota–Bradenton International Airport | Sarasota / Bradenton, Florida, United States |
| SRR | | Dunwich Airport[1] | North Stradbroke Island, Queensland, Australia |
| SRS | | San Marcos Airport[1] | San Marcos, Colombia |
| SRT | HUSO | Soroti Airport | Soroti, Uganda |
| SRV | | Stony River Airport | Stony River, Alaska, United States |
| SRW | KRUQ | Rowan County Airport (FAA: RUQ) | Salisbury, North Carolina, United States |
| SRX | HLGD | Gardabya Airport | Sirte, Libya |
| SRY | OINZ | Dasht-e Naz Airport | Sari, Iran |
| SRZ | SLET | El Trompillo Airport | Santa Cruz de la Sierra, Bolivia |
| -SS- |
| SSA | SBSV | Deputado Luís Eduardo Magalhães International Airport | Salvador, Bahia, Brazil |
| SSB | | Christiansted Harbor Seaplane Base (St. Croix Seaplane Base) (FAA: VI32) | Saint Croix, United States Virgin Islands |
| SSC | KSSC | Shaw Air Force Base | Sumter, South Carolina, United States |
| SSD | | San Felipe Airport[1] | San Felipe, Colombia |
| SSE | VASL | Solapur Airport | Solapur, Maharashtra, India |
| SSF | KSSF | Stinson Municipal Airport | San Antonio, Texas, United States |
| SSG | FGSL | Malabo International Airport (Saint Isabel Airport) | Malabo, Equatorial Guinea |
| SSH | HESH | Sharm el-Sheikh International Airport | Sharm el-Sheikh, Egypt |
| SSI | KSSI | Malcolm McKinnon Airport | Brunswick, Georgia, United States |
| SSJ | ENST | Sandnessjøen Airport, Stokka | Sandnessjøen, Norway |
| SSK | | Sturt Creek Airport[1] | Sturt Creek, Western Australia, Australia |
| SSL | SKSL | Santa Rosalía Airport[1] | Santa Rosalía, Colombia |
| SSN | RKSM | Seoul Air Base | Seoul, South Korea |
| SSO | SNLO | São Lourenço Airport[1] | São Lourenço, Minas Gerais, Brazil |
| SSP | | Silver Plains Airport[1] | Silver Plains, Queensland, Australia |
| SSQ | | La Sarre Airport (TC: CSR8) | La Sarre, Quebec, Canada |
| SSR | NVSH | Sara Airport | Sara, Vanuatu |
| SSS | | Siassi Airport[1] | Umboi Island (Siassi), Papua New Guinea |
| SST | SAZL | Santa Teresita Airport[1] | Santa Teresita, Buenos Aires, Argentina |
| SSV | | Siasi Airport | Siasi, Philippines |
| SSW | | Stuart Island Airpark[1] (FAA: 7WA5) | Stuart Island, Washington, United States |
| SSY | FNBC | Mbanza Congo Airport[1] | M'banza-Kongo, Angola |
| SSZ | SBST | Santos Air Force Base | Santos, São Paulo, Brazil |
| -ST- |
| STA | EKVJ | Stauning Vestjylland Airport | Skjern, Denmark |
| STB | SVSZ | Miguel Urdaneta Fernández Airport | Santa Bárbara del Zulia, Venezuela |
| STC | KSTC | St. Cloud Regional Airport | St. Cloud, Minnesota, United States |
| STD | SVSO | Mayor Buenaventura Vivas Airport | Santo Domingo, Venezuela |
| STE | KSTE | Stevens Point Municipal Airport | Stevens Point, Wisconsin, United States |
| STF | YSTI | Stephens Island Airport | Stephens Island, Queensland, Australia |
| STG | PAPB | St. George Airport (FAA: PBV) | St. George, Alaska, United States |
| STH | YSMR | Strathmore Airport[1] | Strathmore Station, Queensland, Australia |
| STI | MDST | Cibao International Airport | Santiago de los Caballeros, Dominican Republic |
| STJ | KSTJ | Rosecrans Memorial Airport | St. Joseph, Missouri, United States |
| STK | KSTK | Sterling Municipal Airport | Sterling, Colorado, United States |
| STL | KSTL | Lambert–St. Louis International Airport | St. Louis, Missouri, United States |
| STM | SBSN | Santarém-Maestro Wilson Fonseca Airport | Santarém, Pará, Brazil |
| STN | EGSS | London Stansted Airport | London, England, United Kingdom |
| STO[1] | | metropolitan area6 | Stockholm, Sweden |
| STP | KSTP | St. Paul Downtown Airport (Holman Field) | St. Paul / Minneapolis, Minnesota, United States |
| STQ | KOYM | St. Marys Municipal Airport (FAA: OYM) | St. Marys, Pennsylvania, United States |
| STR | EDDS | Stuttgart Airport | Stuttgart, Baden-Württemberg, Germany |
| STS | KSTS | Charles M. Schulz–Sonoma County Airport | Santa Rosa, California, United States |
| STT | TIST | Cyril E. King Airport | St. Thomas Island, United States Virgin Islands |
| STV | VASU | Surat Airport | Surat, Gujarat, India |
| STW | URMT | Stavropol Shpakovskoye Airport | Stavropol, Stavropol Krai, Russia |
| STX | TISX | Henry E. Rohlsen Airport | Saint Croix, United States Virgin Islands |
| STY | SUSO | Nueva Hespérides International Airport | Salto, Uruguay |
| STZ | SWST | Santa Terezinha Airport[1] | Santa Terezinha, Mato Grosso, Brazil |
| -SU- |
| SUA | KSUA | Witham Field | Stuart, Florida, United States |
| SUB | WARR | Juanda International Airport | Surabaya, Indonesia |
| SUD | KSUD | Stroud Municipal Airport | Stroud, Oklahoma, United States |
| SUE | KSUE | Door County Cherryland Airport | Sturgeon Bay, Wisconsin, United States |
| SUF | LICA | Lamezia Terme International Airport | Lamezia Terme, Calabria, Italy |
| SUG | RPMS | Surigao Airport | Surigao City, Philippines |
| SUH | OOSR | Sur Airport[1] | Sur, Oman |
| SUI | UGSS | Sukhumi Babushara Airport (Dranda Airport) | Sukhumi, Georgia |
| SUJ | LRSM | Satu Mare International Airport | Satu Mare, Romania |
| SUK | UEBS | Sakkyryr Airport | Batagay-Alyta (Sakkyryr), Yakutia, Russia |
| SUL | OPSU | Sui Airport[1] | Sui, Pakistan |
| SUM | KSMS | Sumter Airport (FAA: SMS) | Sumter, South Carolina, United States |
| SUN | KSUN | Friedman Memorial Airport | Hailey / Sun Valley, Idaho, United States |
| SUO | | Sunriver Airport (FAA: S21) | Sunriver, Oregon, United States |
| SUP | WART | Trunojoyo Airport[1] | Sumenep, Indonesia |
| SUQ | SESC | Sucúa Airport[1] | Sucúa, Ecuador |
| SUR | | Summer Beaver Airport[1] (TC: CJV7) | Summer Beaver, Ontario, Canada |
| SUS | KSUS | Spirit of St. Louis Airport | St. Louis, Missouri, United States |
| SUT | HTSU | Sumbawanga Airport | Sumbawanga, Tanzania |
| SUU | KSUU | Travis Air Force Base | Fairfield, California, United States |
| SUV | NFNA | Nausori International Airport | Suva, Fiji |
| SUW | KSUW | Richard I. Bong Airport | Superior, Wisconsin, United States |
| SUX | KSUX | Sioux Gateway Airport (Colonel Bud Day Field) | Sioux City, Iowa, United States |
| SUY | UENS | Suntar Airport[1] | Suntar, Yakutia, Russia |
| SUZ | | Suria Airport[1] | Suria, Papua New Guinea |
| -SV- |
| SVA | PASA | Savoonga Airport | Savoonga, Alaska, United States |
| SVB | FMNS | Sambava Airport[1] | Sambava, Madagascar |
| SVC | KSVC | Grant County Airport | Silver City, New Mexico, United States |
| SVD | TVSV | E. T. Joshua Airport | Saint Vincent, Saint Vincent and the Grenadines |
| SVE | KSVE | Susanville Municipal Airport | Susanville, California, United States |
| SVF | DBBS | Savé Airport | Savé, Benin |
| SVG | ENZV | Stavanger Airport, Sola | Stavanger, Norway |
| SVH | KSVH | Statesville Regional Airport | Statesville, North Carolina, United States |
| SVI | SKSV | Eduardo Falla Solano Airport[1] | San Vicente del Caguán, Colombia |
| SVJ | ENSH | Svolvær Airport, Helle | Svolvær, Norway |
| SVK | | Silver Creek Airport[1] | Silver Creek, Belize |
| SVL | EFSA | Savonlinna Airport[1] | Savonlinna, Finland |
| SVM | | St Pauls Airport[1] | St Pauls, Queensland, Australia |
| SVN | KSVN | Hunter Army Airfield | Savannah, Georgia, United States |
| SVO | UUEE | Sheremetyevo International Airport | Moscow, Russia |
| SVP | FNKU | Kuito Airport[1] | Kuito, Angola |
| SVQ | LEZL | Seville Airport | Seville, Andalusia, Spain |
| SVS | | Stevens Village Airport | Stevens Village, Alaska, United States |
| SVT | FBSV | Savuti Airport[1] | Savuti, Botswana |
| SVU | NFNS | Savusavu Airport | Savusavu, Fiji |
| SVW | PASV | Sparrevohn LRRS Airport | Sparrevohn, Alaska, United States |
| SVX | USSS | Koltsovo International Airport | Yekaterinburg, Sverdlovsk Oblast, Russia |
| SVY | | Savo Airport[1] | Savo Island, Solomon Islands |
| SVZ | SVSA | Juan Vicente Gómez International Airport | San Antonio del Táchira, Venezuela |
| -SW- |
| SWA | ZGOW | Jieyang Chaoshan International Airport | Shantou / Jieyang / Chaozhou, Guangdong, China |
| SWB | | Shaw River Airport[1] | Shaw River, Western Australia, Australia |
| SWC | YSWL | Stawell Airport[1] | Stawell, Victoria, Australia |
| SWD | PAWD | Seward Airport | Seward, Alaska, United States |
| SWE | | Siwea Airport[1] | Siwea, Papua New Guinea |
| SWF | KSWF | Stewart International Airport | Newburgh, New York, United States |
| SWG | | Satwag Airport[1] | Satwag, Papua New Guinea |
| SWH | YSWH | Swan Hill Airport[1] | Swan Hill, Victoria, Australia |
| SWJ | NVSX | South West Bay Airport[1] | South West Bay, Vanuatu |
| SWM | | Suia-Missu Airport[1] | Alto Boa Vista, Mato Grosso, Brazil |
| SWN | OPSW | Sahiwal Airport | Sahiwal, Pakistan |
| SWO | KSWO | Stillwater Regional Airport | Stillwater, Oklahoma, United States |
| SWP | FYSM | Swakopmund Airport[1] | Swakopmund, Namibia |
| SWQ | WADS | Sultan Muhammad Kaharuddin III Airport[1] (Brangbiji Airport) | Sumbawa Besar, Indonesia |
| SWR | | Silur Airport[1] | Silur, Papua New Guinea |
| SWS | EGFH | Swansea Airport | Swansea, Wales, United Kingdom |
| SWT | UNSS | Strezhevoy Airport | Strezhevoy, Tomsk Oblast, Russia |
| SWU | RKSW | Suwon Air Base[1] | Suwon, South Korea |
| SWV | UHMW | Severo-Evensk Airport[1] | Evensk, Magadan Oblast, Russia |
| SWW | KSWW | Avenger Field | Sweetwater, Texas, United States |
| SWX | FBSW | Shakawe Airport[1] | Shakawe, Botswana |
| SWY | WMBA | Sitiawan Airport | Sitiawan, Perak, Malaysia |
| -SX- |
| SXA | | Sialum Airport[1] | Sialum, Papua New Guinea |
| SXB | LFST | Strasbourg Airport | Strasbourg, Alsace, France |
| SXE | YWSL | West Sale Airport[1] | Sale, Victoria, Australia |
| SXF | EDDB | Berlin Schönefeld Airport | Berlin, Germany |
| SXG | FLSN | Senanga Airport[1] | Senanga, Zambia |
| SXH | | Sehulea Airport[1] | Sehulea, Papua New Guinea |
| SXI | OIBS | Sirri Island Airport[1] | Sirri Island, Iran |
| SXJ | ZWSS | Shanshan Airport[1] | Shanshan, Xinjiang, China |
| SXK | WAPI | Saumlaki Airport[1] (Olilit Airport) | Saumlaki, Indonesia |
| SXL | EISG | Sligo Airport | Sligo, Ireland |
| SXM | TNCM | Princess Juliana International Airport | Sint Maarten, Kingdom of the Netherlands |
| SXN | FBSN | Sua Pan Airport[1] | Sua Pan, Botswana |
| SXO | SWFX | São Félix do Araguaia Airport[1] | São Félix do Araguaia, Mato Grosso, Brazil |
| SXP | | Sheldon Point Airport | Nunam Iqua, Alaska, United States |
| SXQ | PASX | Soldotna Airport | Soldotna, Alaska, United States |
| SXR | VISR | Srinagar International Airport (Sheikh ul Alam Airport) | Srinagar, Jammu and Kashmir, India |
| SXS | WBKH | Sahabat Airport[1] | Sahabat, Sabah, Malaysia |
| SXT | WMAN | Sungai Tiang Airport[1] | Taman Negara, Pahang, Malaysia |
| SXU | HASD | Soddu Airport[1] | Sodo, Ethiopia |
| SXV | VOSM | Salem Airport | Salem, Tamil Nadu, India |
| SXW | | Sauren Airport[1] | Sauren, Papua New Guinea |
| SXX | SNFX | São Félix do Xingu Airport[1] | São Félix do Xingu, Pará, Brazil |
| SXY | | Sidney Municipal Airport (FAA: N23) | Sidney, New York, United States |
| SXZ | LTCL | Siirt Airport | Siirt, Turkey |
| -SY- |
| SYA | PASY | Eareckson Air Station | Shemya, Alaska, United States |
| SYB | | Seal Bay Seaplane Base[1] | Seal Bay, Alaska, United States |
| SYC | SPSY | Shiringayoc Airport[1] | Shiringayoc, Peru |
| SYD | YSSY | Sydney Airport (Kingsford Smith Airport) | Sydney, New South Wales, Australia |
| SYE | OYSH | Saadah Airport[1] | Sa'dah, Yemen |
| SYF | | Silva Bay Seaplane Base | Gabriola Island, British Columbia, Canada |
| SYG | VNSB | Syangboche Airport[1] | Namche Bazaar, Nepal |
| SYI | KSYI | Shelbyville Municipal Airport (Bomar Field) | Shelbyville, Tennessee, United States |
| SYJ | OIKY | Sirjan Airport | Sirjan, Iran |
| SYK | BIST | Stykkishólmur Airport | Stykkishólmur, Iceland |
| SYM | ZPSM | Pu'er Simao Airport[1] | Simao, Yunnan, China |
| SYN | KSYN | Stanton Airfield | Stanton, Minnesota, United States |
| SYO | RJSY | Shonai Airport | Shōnai, Honshu, Japan |
| SYP | MPSA | Ruben Cantu Airport | Santiago de Veraguas, Panama |
| SYQ | MRPV | Tobías Bolaños International Airport | San José, Costa Rica |
| SYR | KSYR | Syracuse Hancock International Airport | Syracuse, New York, United States |
| SYS | UERS | Saskylakh Airport[1] | Saskylakh, Yakutia, Russia |
| SYT | LFLN | Saint-Yan Airport[1] (Charolais Bourgogne Sud Airport) | Saint-Yan, Burgundy, France |
| SYU | YWBS | Warraber Island Airport[1] | Sue Islet, Queensland, Australia |
| SYV | KSYV | Sylvester Airport | Sylvester, Georgia, United States |
| SYW | OPSN | Sehwan Sharif Airport[1] | Sehwan Sharif, Pakistan |
| SYX | ZJSY | Sanya Phoenix International Airport | Sanya, Hainan, China |
| SYY | EGPO | Stornoway Airport | Stornoway, Scotland, United Kingdom |
| SYZ | OISS | Shiraz International Airport (Shahid Dastghaib Int'l) | Shiraz, Iran |
| -SZ- |
| SZA | FNSO | Soyo Airport[1] | Soyo, Angola |
| SZB | WMSA | Sultan Abdul Aziz Shah Airport | Kuala Lumpur,7 Malaysia |
| SZE | HASM | Semera Airport[1] | Semera, Ethiopia |
| SZF | LTFH | Samsun-Çarşamba Airport | Samsun, Turkey |
| SZG | LOWS | Salzburg Airport | Salzburg, Austria |
| SZI | | Zaysan Airport | Zaysan, Kazakhstan |
| SZJ | MUSN | Siguanea Airport[1] | Isla de la Juventud, Cuba |
| SZK | FASZ | Skukuza Airport[1] | Skukuza, South Africa |
| SZL | KSZL | Whiteman Air Force Base | Knob Noster, Missouri, United States |
| SZM | | Sesriem Airport[1] | Sesriem, Namibia |
| SZN | KSZN | Santa Cruz Island Airport | Santa Cruz Island, California, United States |
| SZP | KSZP | Santa Paula Airport | Santa Paula, California, United States |
| SZR | LBSZ | Stara Zagora Airport | Stara Zagora, Bulgaria |
| SZS | NZRC | Ryan's Creek Aerodrome | Stewart Island, New Zealand |
| SZU | | Ségou Airport[1] | Ségou, Mali |
| SZV | ZSSZ | Suzhou Guangfu Airport | Suzhou, Jiangsu, China |
| SZW | EDOP | Schwerin-Parchim International Airport | Schwerin, Mecklenburg-Vorpommern, Germany |
| SZX | ZGSZ | Shenzhen Bao'an International Airport | Shenzhen, Guangdong, China |
| SZY | EPSY | Olsztyn-Mazury Regional Airport | Szczytno / Olsztyn, Poland |
| SZZ | EPSC | "Solidarity" Szczecin–Goleniów Airport | Szczecin, Poland |