Airports › Houston (IAH) › July 2024
Airport month · July 2024
George Bush Intercontinental/Houston in July 2024
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 2024, reporting carriers scheduled 10,383 domestic departures from George Bush Intercontinental/Houston (IAH). 53.5% left less than 15 minutes late and 53.1% reached their destination on time; 7.7% were cancelled.
Nationally that month, 68.5% of flights departed on time and 68.1% arrived on time, so IAH departures were 15.0 points below the national departure figure.
Flights arriving at IAH that month were on time 59.2% of the time (10,388 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 34% and national aviation system 14%.
- On time 53.1%
- Arrived 15+ minutes late 38.9%
- Cancelled 7.7%
- Diverted 0.4%
July 2024 against a year earlier, the airport's year and the nation
| Measure | Jul 2024 | Year earlier | IAH, 12 months to Jul 2026 | All reported flights, Jul 2024 |
|---|---|---|---|---|
| Departed on time | 53.5% | — | 78.1% | 68.5% |
| Arrived on time | 53.1% | — | 77.6% | 68.1% |
| Cancelled | 7.7% | — | 1.1% | 2.9% |
| Average departure delay (late minutes only) | 38.4 min | — | 17.2 min | 24.9 min |
| Scheduled departures a day | 346 | — | 326 | 21,154 |
| Scheduled departures | 10,383 | — | 119,020 | 634,613 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| UA United Airlines | 5,833 | 56% | 51.7% | 34.4 min | 6.2% |
| OO SkyWest Airlines | 1,143 | 11% | 55.3% | 31.4 min | 9.4% |
| NK Spirit Airlines | 997 | 10% | 47.8% | 34.3 min | 11.3% |
| AA American Airlines | 706 | 7% | 52.1% | 43.0 min | 10.5% |
| DL Delta Air Lines | 703 | 7% | 62.6% | 23.7 min | 9.7% |
| WN Southwest Airlines | 391 | 4% | 69.8% | 14.1 min | 3.8% |
| F9 Frontier Airlines | 361 | 3% | 41.8% | 36.2 min | 11.6% |
| MQ Envoy Air | 94 | 1% | 59.6% | 9.2 min | 11.7% |
| AS Alaska Airlines | 93 | 1% | 67.7% | 19.5 min | 5.4% |
| B6 JetBlue Airways | 62 | 1% | 53.2% | 32.2 min | 4.8% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| IAH–ORD | Houston to Chicago | 495 | 54.9% | 32.6 min | 7.1% |
| IAH–LAX | Houston to Los Angeles | 485 | 56.9% | 28.8 min | 6.6% |
| IAH–DEN | Houston to Denver | 467 | 63.0% | 18.5 min | 6.4% |
| IAH–DFW | Houston to Dallas/Fort Worth | 425 | 52.9% | 32.6 min | 6.6% |
| IAH–ATL | Houston to Atlanta | 386 | 51.8% | 36.7 min | 10.6% |
| IAH–LGA | Houston to New York | 379 | 53.6% | 25.5 min | 7.9% |
| IAH–LAS | Houston to Las Vegas | 363 | 52.6% | 31.9 min | 6.9% |
| IAH–EWR | Houston to Newark | 341 | 45.2% | 45.1 min | 6.5% |
| IAH–MCO | Houston to Orlando | 319 | 48.3% | 35.4 min | 7.5% |
| IAH–SFO | Houston to San Francisco | 279 | 61.6% | 21.9 min | 5.7% |
| IAH–MIA | Houston to Miami | 274 | 52.2% | 43.3 min | 10.6% |
| IAH–CLT | Houston to Charlotte | 257 | 42.8% | 48.8 min | 10.9% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left IAH on time in July 2024?
53.5% of 10,383 scheduled domestic departures left less than 15 minutes late, and 53.1% reached their destination on time. The national figures that month were 68.5% and 68.1%.
How does that compare with a year earlier?
July 2023 is outside the 36 months on file, or the airport had too few reported flights that month.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2024; 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.