| 城市名称 | 机场三字代码 | 机场四字代码 | 机场名称 | 英文名称 |
| SALTONCITY | SAS | SALTONCITY | ||
| 圣安东尼奥 | SAT | SANANTONIO | ||
| SAWU | SAU | SAWU | ||
| 萨凡纳 | SAV | SAVANNAH | ||
| MARQUETTEKIS | SAW | MARQUETTEKISAWYERAFB | ||
| SAMBU | SAX | SAMBU | ||
| SIENA | SAY | SIENA | ||
| SASSTOWNUNIF | SAZ | SASSTOWNUNIFICATON | ||
| SANTABARBARA | SBA | SANTABARBARA | ||
| SANTABARBARA | SBB | SANTABARBARA | ||
| SELBANG | SBC | SELBANG | ||
| SANBERNARDIN | SBD | SANBERNARDINONORTONA | ||
| SUABI | SBE | SUABI | ||
| SABANG | SBG | SABANG | ||
| ST.BARTHELEM | SBH | ST.BARTHELEMY | ||
| KOUNDARASAMB | SBI | KOUNDARASAMBAILO | ||
| SAOMATEUS | SBJ | SAOMATEUS | ||
| ST.BRIEUCTRE | SBK | ST.BRIEUCTREMUSON | ||
| SANTAANAYACU | SBL | SANTAANAYACUMA | ||
| SHEBOYGAN | SBM | SHEBOYGAN | ||
| 南本德 | SBN | SOUTHBEND | ||
| SALINA | SBO | SALINA | ||
| 圣迭戈 | SBP | SANDIEGO | ||
| SIBI | SBQ | SIBI | ||
| SAIBAIISLAND | SBR | SAIBAIISLAND | ||
| STEAMBTSPRIN | SBS | STEAMBTSPRINGS | ||
| 圣贝纳迪诺山脉 | SBT | SANBERNARDINO | ||
| 跳羚 | SBU | SPRINGBOK | ||
| 沙巴 | SBV | SABAH | ||
| 诗巫 | SBW | SIBU | ||
| SHELBY | SBX | SHELBY | ||
| 索尔兹伯里 | SBY | SALISBURY | ||
| 锡比乌 | SBZ | SIBIU | ||
| SANTACATALIN | SCA | SANTACATALINA | ||
| SCRIBNERSTAT | SCB | SCRIBNERSTATE | ||
| PRUDHOEBAY/D | SCC | PRUDHOEBAY/DEADHORSE | ||
| SULACO | SCD | SULACO | ||
| STATECOLLEGE | SCE | STATECOLLEGE | ||
| PHOENIXSCOTT | SCF | PHOENIXSCOTTSDALE | ||
| SPRINGCREEK | SCG | SPRINGCREEK | ||
| SANCRISTOBAL | SCI | SANCRISTOBAL | ||
| SMITHCOVE | SCJ | SMITHCOVE | ||
| 斯托克顿 | SCK | STOCKTON | ||
| SCAMMONBAY | SCM | SCAMMONBAY | ||
| 萨尔布吕肯 | SCN | SAARBRUCKEN | ||
| SHEVCHENKO | SCO | SHEVCHENKO | ||
| ST.CREPIN/VA | SCP | ST.CREPIN/VARSST.CRE | ||
| 圣地亚哥 | SCQ | SANTIAGOCOMP | ||
| WILKES-BARRE | SCR | WILKES-BARRE/SCRANTO | ||
| SHETLANDISLA | SCS | SHETLANDISLANDSSCATS | ||
| SOCOTRA | SCT | SOCOTRA | ||
| SANTIAGOANTO | SCU | SANTIAGOANTONIOM. | ||
| SUCEAVASALCE | SCV | SUCEAVASALCEA | ||
| 瑟克特夫卡尔 | SCW | SYKTYVKAR | ||
| SALINACRUZ | SCX | SALINACRUZ | ||
| 圣克鲁斯 | SCZ | SANTACRUZ | ||
| 巴格达 | SDA | BAGHDAD | ||
| SALDANHABAYL | SDB | SALDANHABAYLANGEBAAN | ||
| SANDCREEK | SDC | SANDCREEK | ||
| LUBANGOBANDE | SDD | LUBANGOBANDERIA |
机场三字代码简称“三字代码”，由国际航空运输协会（IATA ,International Air Transport Association）制定。国际航空运输协会（IATA）对世界上的国家、城市、机场、加入国际航空运输协会的航空公司制定了统一的编码。在空运中以三个英文字母简写航空机场名，称“机场三字代码”或“三字代码”。
世界上每一个民航机场都有自己唯一的三字码，部分空军机场也有三字码。机场三字代码查询支持国际机场三字代码查询，国内机场3字代码查询，全球机场三字代码查询，国内机场三字代码，始发机场三字代码，机场三字代码表，国际机场三字代码表查询。