Airlines at George Bush Intercontinental Airport (IAH)
Houston, Texas KIAH #15 US airport by passengers
Airlines operating at IAH, ranked by number of departures.
On-time performance at IAH
Based on 30,252 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.
26.6%Departures late
23.8%Arrivals late
0.85%Cancelled
21.9 minAverage departure delay
| Airline | Departures | Late |
|---|---|---|
| United Airlines | 18,951 | 25.7% |
| SkyWest Airlines | 3,730 | 26.4% |
| American Airlines | 2,258 | 30.1% |
| Delta Air Lines | 2,217 | 24.2% |
| Frontier Airlines | 1,755 | 29.7% |
| JetBlue Airways | 355 | 52.7% |
| Alaska Airlines | 347 | 19.9% |
| PSA Airlines | 257 | 28.8% |
| Envoy Air | 250 | 36.0% |
| Republic Airways | 116 | 25.0% |
Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.
Airline presence
United Airlines operates its largest Texas hub here, with a strong network to Latin America. Several other airlines also serve the airport.