| 城市名称 | 机场三字代码 | 机场四字代码 | 机场名称 | 英文名称 |
| IVISHAK | IVH | IVISHAK | ||
| IVALO | IVL | IVALO | ||
| CHIVOLO | IVO | CHIVOLO | ||
| 因弗雷尔 | IVR | INVERELL | ||
| INVERWAY | IVW | INVERWAY | ||
| 伊万诺沃 | IWA | IVANOVO | ||
| IRONWOODGOGE | IWD | IRONWOODGOGEBICCO | ||
| 休斯顿 | IWS | HOUSTON,TX | ||
| AGARTALASING | IXA | AGARTALASINGERBHIL | ||
| BAGDOGRA | IXB | BAGDOGRA | ||
| ALLAHABADBAM | IXD | ALLAHABADBAMRAULI | ||
| MANGALOREBAJ | IXE | MANGALOREBAJPE | ||
| BELGAUMSAMBR | IXG | BELGAUMSAMBRE | ||
| KAILASHAHAR | IXH | KAILASHAHAR | ||
| LILABARIAPRT | IXI | LILABARIAPRT | ||
| JAMMUSATWARI | IXJ | JAMMUSATWARI | ||
| KESHOD | IXK | KESHOD | ||
| LEH | IXL | LEH | ||
| MADURAI | IXM | MADURAI | ||
| KHOWAI | IXN | KHOWAI | ||
| PATHANKOT | IXP | PATHANKOT | ||
| KAMALPUR | IXQ | KAMALPUR | ||
| 兰契 | IXR | RANCHI | ||
| SILCHARKUMBI | IXS | SILCHARKUMBIRGRAM | ||
| PASSIGHAT | IXT | PASSIGHAT | ||
| AURANGABADCH | IXU | AURANGABADCHIKALTHAN | ||
| ALONG | IXV | ALONG | ||
| JAMSHEDPURSO | IXW | JAMSHEDPURSONARI | ||
| KANDLA | IXY | KANDLA | ||
| 布莱尔港 | IXZ | PORTBLAIR | ||
| INYOKERN | IYK | INYOKERN | ||
| 伊兹密尔 | IZM | IZMIR | ||
| IXTEPEC | IZT | IXTEPEC | ||
| 贾拉拉巴德 | JAA | JALALABAD | ||
| 贾比鲁 | JAB | JABIRU | ||
| JACKSONWY | JAC | JACKSONWY | ||
| JANDAKOT | JAD | JANDAKOT | ||
| ATLANTATECHN | JAE | ATLANTATECHNOLOGYPAR | ||
| JAFFNAKANKES | JAF | JAFFNAKANKESANTU | ||
| 雅各布阿巴德 | JAG | JACOBABAD | ||
| AUBAGNEAGORA | JAH | AUBAGNEAGORAHLPD | ||
| JAIPURSANGAN | JAI | JAIPURSANGANEER | ||
| ATLANTAPERIM | JAJ | ATLANTAPERIMETERMALL | ||
| 雅克梅勒 | JAK | JACMEL | ||
| 哈拉帕 | JAL | JALAPA | ||
| 扬博尔 | JAM | JAMBOL | ||
| JACKSONMS | JAN | JACKSONMS | ||
| ATLANTABEAVE | JAO | ATLANTABEAVERRUIN | ||
| 杰基诺特湾 | JAQ | JACQUINOTBAY | ||
| ARCADIACIVIC | JAR | ARCADIACIVICCTR | ||
| JASPERCOUNTY | JAS | JASPERCOUNTY | ||
| JABAT | JAT | JABAT | ||
| JAUJA | JAU | JAUJA | ||
| JAKOBSHAVN | JAV | JAKOBSHAVN | ||
| 杰克逊维尔 | JAX | JACKSONVILLEFL | ||
| BOSTONCITYHL | JBC | BOSTONCITYHLPT | ||
| 伯克利 | JBK | BERKELEY | ||
| LOSANGELESCO | JBP | LOSANGELESCOMMERCE | ||
| JONESBORO | JBR | JONESBORO | ||
| PLEASANTONHA | JBS | PLEASANTONHACINDAHP |
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。