| Abbreviation | Definition |
|---|---|
| IAM | In Amenas, Algeria |
| IAN | Kiana, Alaska USA |
| IAQ | Bahregan, Iran |
| IAR | Yaroslavl, Russia |
| IAS | Iasi, Romania |
| IBE | Ibague, Colombia |
| IBI | Iboki, Papua New Guinea |
| IBO | Ibo, Mozambique |
| IBP | Iberia, Peru |
| IBZ | Ibiza, Spain |
| ICA | Icabaru, Venezuela |
| ICI | Cicia, Fiji |
| ICK | Nieuw Nickerie, Surinam |
| ICN | Incheon International Airport, Seoul, South Korea |
| ICO | Sicogon Island, Philippines |
| ICT | Mid-Continent Airport, Wichita, Kansas USA |
| ICY | Icy Bay, Alaska |
| ID52 | Bowman Field, Chester, Idaho USA |
| IDA | Fanning Field, Idaho Falls, Idaho USA |
| IDF | Idiofa, Zaire |