Airports in Illinois, United States
1,120 airports and heliports available for private and business aviation.
1,120 Airport(s)
| ICAO Code | IATA Code | Airport Name | City | Region | Country |
|---|---|---|---|---|---|
| ICAO Code N/A | IATA Code N/A | Airport Name Oink Acres Airport | CityMahomet | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name Olivers Heliport | CityGilberts | RegionIllinois | CountryUnited States |
| ICAO Code KOLY | IATA Code OLY | Airport Name Olney Noble Airport | CityOlney-Noble | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name Olson Airport | CityElgin | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name Olson Heliport | CityPecatonica | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name Oltman-Shuck Airport | CityMinonk | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name Orton Airport | CityHillview | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name Orwig Restricted Landing Area Airport | CityDelavan | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name OSF Center For Health - Streator Heliport | CityStreator | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name OSF Family Medical Center Heliport | CityMonmouth | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name OSF Healthcare Sacred Heart Medical Center Heliport | CityDanville | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name OSF Healthcare/Urbana Heliport | CityUrbana | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name OSF Saint Francis Medical Center Heliport | CityPeoria | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name OSF St Anthony's Health Center Heliport | CityAlton | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name OSF St Luke Medical Center Heliport | CityKewanee | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name OSF St Paul Medical Center Heliport | CityMendota | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name Ottawa Airport / Skydive Chicago Airfield | CityOttawa | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name Otterbach Farm Airport | CityMendota | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name Otto Junior Airport | CityRoberts | RegionIllinois | CountryUnited States |
| ICAO Code N/A | IATA Code N/A | Airport Name P.J. Killian Airport | CityLexington | RegionIllinois | CountryUnited States |