Airports › Houston (IAH) › April 2024
Airport month · April 2024
George Bush Intercontinental/Houston in April 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 April 2024, reporting carriers scheduled 9,288 domestic departures from George Bush Intercontinental/Houston (IAH). 78.0% left less than 15 minutes late and 77.1% reached their destination on time; 0.5% were cancelled.
Nationally that month, 80.5% of flights departed on time and 80.2% arrived on time, so IAH departures were 2.5 points below the national departure figure.
Flights arriving at IAH that month were on time 81.3% of the time (9,287 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 31% and national aviation system 23%.
- On time 77.1%
- Arrived 15+ minutes late 22.2%
- Cancelled 0.5%
- Diverted 0.3%
April 2024 against a year earlier, the airport's year and the nation
| Measure | Apr 2024 | Year earlier | IAH, 12 months to Jul 2026 | All reported flights, Apr 2024 |
|---|---|---|---|---|
| Departed on time | 78.0% | — | 78.1% | 80.5% |
| Arrived on time | 77.1% | — | 77.6% | 80.2% |
| Cancelled | 0.5% | — | 1.1% | 0.7% |
| Average departure delay (late minutes only) | 15.5 min | — | 17.2 min | 14.2 min |
| Scheduled departures a day | 310 | — | 326 | 19,406 |
| Scheduled departures | 9,288 | — | 119,020 | 582,185 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| UA United Airlines | 5,362 | 58% | 74.9% | 8.7 min | 0.4% |
| OO SkyWest Airlines | 1,052 | 11% | 82.9% | 3.2 min | 0.3% |
| DL Delta Air Lines | 687 | 7% | 82.1% | 4.0 min | 0.1% |
| NK Spirit Airlines | 681 | 7% | 79.7% | 3.9 min | 0.3% |
| AA American Airlines | 580 | 6% | 77.6% | 9.3 min | 0.9% |
| WN Southwest Airlines | 410 | 4% | 85.1% | 0.6 min | 0.5% |
| F9 Frontier Airlines | 220 | 2% | 63.6% | 27.0 min | 0.9% |
| MQ Envoy Air | 137 | 1% | 76.6% | 18.2 min | 5.1% |
| AS Alaska Airlines | 72 | 1% | 73.6% | 5.4 min | 0.0% |
| B6 JetBlue Airways | 60 | 1% | 76.7% | 5.5 min | 3.3% |
| YX Republic Airline | 27 | 0% | 81.5% | 22.3 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| IAH–DEN | Houston to Denver | 441 | 80.7% | 3.0 min | 0.2% |
| IAH–LAX | Houston to Los Angeles | 437 | 84.4% | 0.1 min | 0.2% |
| IAH–ORD | Houston to Chicago | 428 | 79.7% | 1.8 min | 0.5% |
| IAH–DFW | Houston to Dallas/Fort Worth | 406 | 69.5% | 22.1 min | 3.2% |
| IAH–LGA | Houston to New York | 379 | 75.7% | 6.4 min | 0.3% |
| IAH–LAS | Houston to Las Vegas | 361 | 77.6% | 6.6 min | 0.3% |
| IAH–ATL | Houston to Atlanta | 357 | 74.8% | 11.9 min | 0.3% |
| IAH–MCO | Houston to Orlando | 300 | 80.3% | 5.2 min | 0.0% |
| IAH–EWR | Houston to Newark | 270 | 74.4% | 6.8 min | 0.7% |
| IAH–MIA | Houston to Miami | 261 | 80.5% | 4.9 min | 0.4% |
| IAH–MSY | Houston to New Orleans | 249 | 74.7% | 10.6 min | 0.4% |
| IAH–SFO | Houston to San Francisco | 240 | 59.2% | 16.6 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left IAH on time in April 2024?
78.0% of 9,288 scheduled domestic departures left less than 15 minutes late, and 77.1% reached their destination on time. The national figures that month were 80.5% and 80.2%.
How does that compare with a year earlier?
April 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 April 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.