Airlines at Chicago O'Hare International Airport (ORD)
Chicago, Illinois KORD #3 US airport by passengers
Airlines operating at ORD, ranked by number of departures.
On-time performance at ORD
Based on 98,117 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.
25.4%Departures late
23.5%Arrivals late
2.85%Cancelled
21.7 minAverage departure delay
| Airline | Departures | Late |
|---|---|---|
| United Airlines | 28,075 | 23.9% |
| SkyWest Airlines | 22,970 | 24.9% |
| American Airlines | 17,928 | 36.5% |
| Envoy Air | 14,976 | 18.9% |
| Republic Airways | 7,933 | 17.7% |
| Delta Air Lines | 3,235 | 25.2% |
| Alaska Airlines | 1,098 | 31.9% |
| Frontier Airlines | 938 | 27.9% |
| Southwest Airlines | 441 | 46.7% |
| JetBlue Airways | 429 | 22.8% |
Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.
Airline presence
United Airlines and American Airlines both operate large hubs here, which is unusual. Delta, Alaska, Spirit and many international airlines complete the picture.