| 城市名称 | 机场三字代码 | 机场四字代码 | 机场名称 | 英文名称 |
| 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 | ||
| SANTIAGODELE | SDE | SANTIAGODELESTERO | ||
| 路易斯维尔 | SDF | LOUISVILLE | ||
| 萨南达季 | SDG | SANANDAJ | ||
| SANTAROSADEC | SDH | SANTAROSADECOPAN | ||
| SAIDOR | SDI | SAIDOR | ||
| 山打根 | SDK | SANDAKAN | ||
| 松兹瓦尔 | SDL | SUNDSVALL | ||
| SANDIEGOBROW | SDM | SANDIEGOBROWNFIELDMU | ||
| SANDANE | SDN | SANDANE | ||
| RYOTSUSADOIS | SDO | RYOTSUSADOISLAND | ||
| SANDPOINT | SDP | SANDPOINT | ||
| 圣多明各 | SDQ | SANTODOMINGO | ||
| 桑坦德 | SDR | SANTANDER | ||
| SADOSHIMA | SDS | SADOSHIMA | ||
| SAIDUSHARIF | SDT | SAIDUSHARIF | ||
| RIODEJANEIRO | SDU | RIODEJANEIROSANTOSDU | ||
| TELAVIV-YAFO | SDV | TELAVIV-YAFOSDEDOV | ||
| SANDWIP | SDW | SANDWIP | ||
| SEDONA | SDX | SEDONA | ||
| SIDNEY | SDY | SIDNEY | ||
| 塞布哈 | SEB | SEBHA | ||
| SERRECHEVALI | SEC | SERRECHEVALIER | ||
| SEDOMHASHNAY | SED | SEDOMHASHNAYIM | ||
| SANDIEGOGILL | SEE | SANDIEGOGILLESPIEFIE | ||
| SEBRING | SEF | SEBRING | ||
| SELINSGROVEP | SEG | SELINSGROVEPENNVALLY | ||
| SENGGEH | SEH | SENGGEH | ||
| SENHORDOBONF | SEI | SENHORDOBONFIM | ||
| SEYDISFJORDU | SEJ | SEYDISFJORDUR | ||
| KSARESSOUK | SEK | KSARESSOUK | ||
| SELMACRAIGAF | SEM | SELMACRAIGAFB | ||
| LONDONSOUTHE | SEN | LONDONSOUTHEND | ||
| SEGUELA | SEO | SEGUELA | ||
| STEPHENVILLE | SEP | STEPHENVILLE |
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。