Airports › Houston (IAH) › January 2024
Airport month · January 2024
George Bush Intercontinental/Houston in January 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 January 2024, reporting carriers scheduled 8,933 domestic departures from George Bush Intercontinental/Houston (IAH). 69.7% left less than 15 minutes late and 69.7% reached their destination on time; 6.3% were cancelled.
Nationally that month, 74.0% of flights departed on time and 72.9% arrived on time, so IAH departures were 4.3 points below the national departure figure.
Flights arriving at IAH that month were on time 71.1% of the time (8,939 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 30% and national aviation system 18%.
- On time 69.7%
- Arrived 15+ minutes late 23.6%
- Cancelled 6.3%
- Diverted 0.4%
January 2024 against a year earlier, the airport's year and the nation
| Measure | Jan 2024 | Year earlier | IAH, 12 months to Jul 2026 | All reported flights, Jan 2024 |
|---|---|---|---|---|
| Departed on time | 69.7% | — | 78.1% | 74.0% |
| Arrived on time | 69.7% | — | 77.6% | 72.9% |
| Cancelled | 6.3% | — | 1.1% | 3.7% |
| Average departure delay (late minutes only) | 23.1 min | — | 17.2 min | 18.7 min |
| Scheduled departures a day | 298 | — | 326 | 18,242 |
| Scheduled departures | 8,933 | — | 119,020 | 547,271 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| UA United Airlines | 5,389 | 60% | 69.3% | 14.1 min | 7.8% |
| OO SkyWest Airlines | 1,016 | 11% | 69.2% | 16.7 min | 6.4% |
| DL Delta Air Lines | 628 | 7% | 76.1% | 10.3 min | 1.1% |
| NK Spirit Airlines | 595 | 7% | 67.2% | 17.7 min | 2.4% |
| AA American Airlines | 435 | 5% | 70.8% | 23.4 min | 1.8% |
| WN Southwest Airlines | 429 | 5% | 76.2% | 6.6 min | 4.9% |
| MQ Envoy Air | 184 | 2% | 64.1% | 25.6 min | 4.3% |
| F9 Frontier Airlines | 125 | 1% | 66.4% | 31.3 min | 0.8% |
| AS Alaska Airlines | 68 | 1% | 55.9% | 3.3 min | 19.1% |
| B6 JetBlue Airways | 62 | 1% | 58.1% | 17.7 min | 8.1% |
| YX Republic Airline | 2 | 0% | 100.0% | -22.5 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| IAH–DEN | Houston to Denver | 410 | 67.8% | 15.1 min | 6.8% |
| IAH–LAX | Houston to Los Angeles | 403 | 69.2% | 12.7 min | 10.9% |
| IAH–DFW | Houston to Dallas/Fort Worth | 368 | 64.9% | 26.3 min | 4.3% |
| IAH–ORD | Houston to Chicago | 359 | 64.9% | 23.0 min | 7.2% |
| IAH–ATL | Houston to Atlanta | 334 | 75.4% | 10.4 min | 1.2% |
| IAH–MCO | Houston to Orlando | 332 | 68.7% | 18.8 min | 3.6% |
| IAH–LAS | Houston to Las Vegas | 330 | 73.6% | 12.9 min | 5.5% |
| IAH–EWR | Houston to Newark | 283 | 77.0% | -3.2 min | 11.7% |
| IAH–MIA | Houston to Miami | 263 | 59.7% | 20.9 min | 8.4% |
| IAH–SFO | Houston to San Francisco | 251 | 62.2% | 29.4 min | 12.0% |
| IAH–FLL | Houston to Fort Lauderdale | 244 | 68.4% | 27.9 min | 3.3% |
| IAH–LGA | Houston to New York | 227 | 69.6% | 18.9 min | 2.2% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left IAH on time in January 2024?
69.7% of 8,933 scheduled domestic departures left less than 15 minutes late, and 69.7% reached their destination on time. The national figures that month were 74.0% and 72.9%.
How does that compare with a year earlier?
January 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 January 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.