Airports › Houston (IAH) › June 2026
Airport month · June 2026
George Bush Intercontinental/Houston in June 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 June 2026, reporting carriers scheduled 9,903 domestic departures from George Bush Intercontinental/Houston (IAH). 70.3% left less than 15 minutes late and 69.1% reached their destination on time; 0.7% were cancelled.
Nationally that month, 72.2% of flights departed on time and 72.8% arrived on time, so IAH departures were 1.9 points below the national departure figure.
A year earlier, in June 2025, the airport had 10,009 departures with 64.2% leaving on time: a change of +6.1 points, with flights down 1%.
Flights arriving at IAH that month were on time 73.6% of the time (9,902 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 39%, air carrier 28% and national aviation system 22%.
- On time 69.1%
- Arrived 15+ minutes late 29.8%
- Cancelled 0.7%
- Diverted 0.4%
June 2026 against a year earlier, the airport's year and the nation
| Measure | Jun 2026 | Jun 2025 | IAH, 12 months to Jul 2026 | All reported flights, Jun 2026 |
|---|---|---|---|---|
| Departed on time | 70.3% | 64.2% | 78.1% | 72.2% |
| Arrived on time | 69.1% | 63.3% | 77.6% | 72.8% |
| Cancelled | 0.7% | 2.3% | 1.1% | 1.6% |
| Average departure delay (late minutes only) | 25.2 min | 32.9 min | 17.2 min | 20.6 min |
| Scheduled departures a day | 330 | 334 | 326 | 20,253 |
| Scheduled departures | 9,903 | 10,009 | 119,020 | 607,577 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| UA United Airlines | 6,152 | 62% | 69.6% | 14.8 min | 0.1% |
| OO SkyWest Airlines | 1,274 | 13% | 67.5% | 24.0 min | 0.7% |
| AA American Airlines | 756 | 8% | 67.6% | 26.4 min | 2.8% |
| DL Delta Air Lines | 714 | 7% | 75.1% | 11.2 min | 0.7% |
| F9 Frontier Airlines | 585 | 6% | 64.8% | 18.7 min | 2.7% |
| AS Alaska Airlines | 117 | 1% | 80.3% | 10.5 min | 0.0% |
| B6 JetBlue Airways | 110 | 1% | 56.4% | 37.1 min | 0.9% |
| OH PSA Airlines | 89 | 1% | 62.9% | 67.3 min | 7.9% |
| MQ Envoy Air | 67 | 1% | 62.7% | 57.5 min | 6.0% |
| YX Republic Airline | 39 | 0% | 53.8% | 29.4 min | 10.3% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| IAH–ORD | Houston to Chicago | 525 | 67.0% | 21.9 min | 2.1% |
| IAH–DFW | Houston to Dallas/Fort Worth | 464 | 62.1% | 37.2 min | 3.7% |
| IAH–DEN | Houston to Denver | 431 | 71.0% | 14.3 min | 0.2% |
| IAH–LAX | Houston to Los Angeles | 397 | 78.8% | 5.1 min | 0.3% |
| IAH–ATL | Houston to Atlanta | 396 | 67.9% | 14.9 min | 1.8% |
| IAH–LGA | Houston to New York | 340 | 69.1% | 14.5 min | 0.9% |
| IAH–EWR | Houston to Newark | 300 | 69.3% | 13.4 min | 0.0% |
| IAH–SFO | Houston to San Francisco | 300 | 57.0% | 19.6 min | 0.3% |
| IAH–DCA | Houston to Washington | 280 | 61.4% | 34.7 min | 2.5% |
| IAH–MIA | Houston to Miami | 277 | 74.0% | 10.0 min | 0.7% |
| IAH–LAS | Houston to Las Vegas | 261 | 72.8% | 12.7 min | 1.5% |
| IAH–MCO | Houston to Orlando | 257 | 73.9% | 12.1 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left IAH on time in June 2026?
70.3% of 9,903 scheduled domestic departures left less than 15 minutes late, and 69.1% reached their destination on time. The national figures that month were 72.2% and 72.8%.
How does that compare with a year earlier?
In June 2025, 64.2% of 10,009 departures left on time and 2.3% were cancelled, against 70.3% and 0.7% in June 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 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.