Airports › Houston (IAH) › July 2026
Airport month · July 2026
George Bush Intercontinental/Houston in July 2026
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In July 2026, reporting carriers scheduled 10,244 domestic departures from George Bush Intercontinental/Houston (IAH). 72.4% left less than 15 minutes late and 70.7% reached their destination on time; 1.3% were cancelled.
Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so IAH departures were 3.6 points above the national departure figure.
A year earlier, in July 2025, the airport had 10,311 departures with 67.6% leaving on time: a change of +4.8 points, with flights down 1%.
Flights arriving at IAH that month were on time 74.9% of the time (10,240 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 38%, air carrier 30% and national aviation system 27%.
- On time 70.7%
- Arrived 15+ minutes late 27.2%
- Cancelled 1.3%
- Diverted 0.7%
July 2026 against a year earlier, the airport's year and the nation
| Measure | Jul 2026 | Jul 2025 | IAH, 12 months to Jul 2026 | All reported flights, Jul 2026 |
|---|---|---|---|---|
| Departed on time | 72.4% | 67.6% | 78.1% | 68.8% |
| Arrived on time | 70.7% | 67.2% | 77.6% | 69.4% |
| Cancelled | 1.3% | 1.7% | 1.1% | 2.6% |
| Average departure delay (late minutes only) | 22.1 min | 29.1 min | 17.2 min | 24.1 min |
| Scheduled departures a day | 342 | 344 | 326 | 21,066 |
| Scheduled departures | 10,244 | 10,311 | 119,020 | 631,970 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| UA United Airlines | 6,385 | 62% | 72.4% | 10.5 min | 0.5% |
| OO SkyWest Airlines | 1,230 | 12% | 72.4% | 20.1 min | 0.4% |
| AA American Airlines | 805 | 8% | 67.6% | 24.4 min | 2.1% |
| DL Delta Air Lines | 736 | 7% | 73.8% | 11.4 min | 2.3% |
| F9 Frontier Airlines | 606 | 6% | 63.5% | 20.3 min | 5.0% |
| B6 JetBlue Airways | 192 | 2% | 26.0% | 84.2 min | 9.9% |
| AS Alaska Airlines | 123 | 1% | 82.1% | 1.7 min | 0.8% |
| OH PSA Airlines | 84 | 1% | 57.1% | 27.5 min | 11.9% |
| MQ Envoy Air | 56 | 1% | 71.4% | 13.2 min | 1.8% |
| YX Republic Airline | 27 | 0% | 77.8% | 10.3 min | 3.7% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| IAH–ORD | Houston to Chicago | 553 | 69.1% | 19.1 min | 2.7% |
| IAH–DFW | Houston to Dallas/Fort Worth | 482 | 72.0% | 18.1 min | 0.8% |
| IAH–DEN | Houston to Denver | 444 | 80.0% | -1.2 min | 1.6% |
| IAH–ATL | Houston to Atlanta | 426 | 65.3% | 16.2 min | 2.3% |
| IAH–LAX | Houston to Los Angeles | 414 | 81.2% | 1.7 min | 0.2% |
| IAH–LGA | Houston to New York | 351 | 58.1% | 27.6 min | 4.6% |
| IAH–EWR | Houston to Newark | 310 | 60.6% | 24.9 min | 4.2% |
| IAH–SFO | Houston to San Francisco | 297 | 68.0% | 13.1 min | 0.0% |
| IAH–MIA | Houston to Miami | 288 | 68.1% | 18.4 min | 2.4% |
| IAH–DCA | Houston to Washington | 284 | 60.9% | 21.3 min | 4.6% |
| IAH–LAS | Houston to Las Vegas | 264 | 73.9% | 7.7 min | 1.5% |
| IAH–MCO | Houston to Orlando | 263 | 66.2% | 15.2 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left IAH on time in July 2026?
72.4% of 10,244 scheduled domestic departures left less than 15 minutes late, and 70.7% reached their destination on time. The national figures that month were 68.8% and 69.4%.
How does that compare with a year earlier?
In July 2025, 67.6% of 10,311 departures left on time and 1.7% were cancelled, against 72.4% and 1.3% in July 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for IAH · methodology · corrections.