Airports › Houston (IAH) › August 2024
Airport month · August 2024
George Bush Intercontinental/Houston in August 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 August 2024, reporting carriers scheduled 10,284 domestic departures from George Bush Intercontinental/Houston (IAH). 74.0% left less than 15 minutes late and 74.4% reached their destination on time; 1.5% were cancelled.
Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so IAH departures were 1.4 points below the national departure figure.
A year earlier, in August 2023, the airport had 9,786 departures with 79.0% leaving on time: a change of −5.0 points, with flights up 5%.
Flights arriving at IAH that month were on time 77.9% of the time (10,276 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 33% and national aviation system 20%.
- On time 74.4%
- Arrived 15+ minutes late 23.7%
- Cancelled 1.5%
- Diverted 0.4%
August 2024 against a year earlier, the airport's year and the nation
| Measure | Aug 2024 | Aug 2023 | IAH, 12 months to Jul 2026 | All reported flights, Aug 2024 |
|---|---|---|---|---|
| Departed on time | 74.0% | 79.0% | 78.1% | 75.4% |
| Arrived on time | 74.4% | 79.6% | 77.6% | 74.7% |
| Cancelled | 1.5% | 0.9% | 1.1% | 2.1% |
| Average departure delay (late minutes only) | 19.7 min | 15.5 min | 17.2 min | 18.4 min |
| Scheduled departures a day | 343 | 326 | 326 | 20,634 |
| Scheduled departures | 10,284 | 9,786 | 119,020 | 619,025 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| UA United Airlines | 5,934 | 58% | 74.1% | 10.6 min | 1.2% |
| OO SkyWest Airlines | 1,260 | 12% | 81.7% | 9.7 min | 0.5% |
| NK Spirit Airlines | 1,019 | 10% | 72.4% | 11.3 min | 2.5% |
| AA American Airlines | 711 | 7% | 66.8% | 25.4 min | 3.1% |
| DL Delta Air Lines | 702 | 7% | 81.5% | 2.3 min | 1.1% |
| F9 Frontier Airlines | 384 | 4% | 60.2% | 22.2 min | 3.6% |
| AS Alaska Airlines | 92 | 1% | 76.1% | -0.1 min | 0.0% |
| MQ Envoy Air | 68 | 1% | 92.6% | -8.5 min | 0.0% |
| B6 JetBlue Airways | 62 | 1% | 61.3% | 25.1 min | 1.6% |
| WN Southwest Airlines | 52 | 1% | 80.8% | 2.1 min | 1.9% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| IAH–ORD | Houston to Chicago | 502 | 74.7% | 12.3 min | 0.8% |
| IAH–LAX | Houston to Los Angeles | 483 | 84.1% | -1.6 min | 0.6% |
| IAH–DFW | Houston to Dallas/Fort Worth | 454 | 71.8% | 20.0 min | 1.5% |
| IAH–ATL | Houston to Atlanta | 418 | 77.8% | 5.8 min | 1.9% |
| IAH–DEN | Houston to Denver | 415 | 79.3% | 5.6 min | 0.5% |
| IAH–LGA | Houston to New York | 361 | 63.2% | 18.2 min | 5.3% |
| IAH–EWR | Houston to Newark | 342 | 65.5% | 21.6 min | 4.4% |
| IAH–LAS | Houston to Las Vegas | 321 | 78.2% | 8.1 min | 0.6% |
| IAH–MCO | Houston to Orlando | 303 | 70.0% | 13.3 min | 2.0% |
| IAH–MIA | Houston to Miami | 293 | 68.6% | 18.8 min | 2.7% |
| IAH–SFO | Houston to San Francisco | 280 | 87.9% | -4.0 min | 0.0% |
| IAH–CLT | Houston to Charlotte | 255 | 69.0% | 8.9 min | 4.7% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left IAH on time in August 2024?
74.0% of 10,284 scheduled domestic departures left less than 15 minutes late, and 74.4% reached their destination on time. The national figures that month were 75.4% and 74.7%.
How does that compare with a year earlier?
In August 2023, 79.0% of 9,786 departures left on time and 0.9% were cancelled, against 74.0% and 1.5% in August 2024.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 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.