Route · IAH → LAX · 2020–2025 BTS data
Houston to Los Angeles
The IAH–LAX corridor (Houston, TX → Los Angeles, CA) runs ahead of the national average, served by 25 carriers across roughly 1,379 miles.
Data updated 2026-06-13
- 83.4%
- On-time
- +4.4 pts
- vs US avg
- 74 min
- Delay when late
- 28,113
- Flights
Cancelled
1.3%
Best Month
Oct 2024 92%
Worst Month
Jul 2024 64%
Distance
1,379 mi
Carriers
25
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 448 | 71 | 3 | 1 | DL,F9,NK,UA,OO |
| Nov 2025 | 446 | 86 | 3 | 0 | OO,UA,DL,F9,NK |
| Oct 2025 | 493 | 76 | 0 | 1 | DL,OO,UA,F9,NK |
| Sep 2025 | 440 | 59 | 0 | 1 | UA,OO,DL,NK,F9 |
| Aug 2025 | 442 | 60 | 4 | 2 | OO,F9,NK,UA,DL |
| Jul 2025 | 454 | 98 | 5 | 0 | NK,OO,UA,DL,F9 |
| Jun 2025 | 431 | 120 | 7 | 0 | OO,UA,DL,F9,NK |
| May 2025 | 448 | 97 | 1 | 0 | NK,OO,UA,DL,F9 |
| Apr 2025 | 462 | 72 | 0 | 0 | DL,F9,NK,OO,UA |
| Mar 2025 | 445 | 49 | 1 | 1 | DL,OO,UA,NK,F9 |
| Feb 2025 | 412 | 51 | 1 | 0 | OO,UA,DL,F9,NK |
| Jan 2025 | 479 | 68 | 21 | 1 | OO,UA,DL,F9,NK |
| Dec 2024 | 494 | 74 | 4 | 0 | DL,F9,NK,OO,UA |
| Nov 2024 | 463 | 59 | 0 | 1 | OO,UA,NK,DL |
| Oct 2024 | 476 | 38 | 1 | 1 | UA,OO,DL,NK |
| Sep 2024 | 463 | 42 | 0 | 0 | NK,OO,UA,DL |
| Aug 2024 | 483 | 74 | 3 | 0 | DL,NK,OO,UA |
| Jul 2024 | 485 | 175 | 32 | 2 | DL,NK,OO,UA |
| Jun 2024 | 472 | 135 | 3 | 0 | DL,NK,OO,UA |
| May 2024 | 467 | 148 | 5 | 0 | DL,NK,OO,UA |
| Apr 2024 | 437 | 67 | 1 | 0 | DL,NK,OO,UA |
| Mar 2024 | 425 | 98 | 0 | 1 | DL,NK,OO,UA |
| Feb 2024 | 371 | 68 | 0 | 0 | DL,NK,OO,UA |
| Jan 2024 | 403 | 79 | 44 | 1 | DL,NK,OO,UA |
Cancellation Rate
1.3%
139 of 10,839 flights
Diversion Rate
0.1%
13 of 10,839 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Origin airport →LAX - Los Angeles
Full on-time, delay-cause, and seasonal performance for Los Angeles, CA.
Destination airport →Compare the two airports
See IAH and LAX side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAH–LAX.
Routes with a similar on-time rate
What the Data Says About IAH to LAX
Bureau of Transportation Statistics records show Houston to Los Angeles (IAH to LAX) running a 83.4% on-time rate over 28,113 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 73.5 minutes. The 1,379-mile corridor is served by 25 carriers, and over the last 24 months 1.3% of 10,839 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 92% on-time, while Jul 2024 came in at just 64% - a 28-point swing worth factoring into travel timing.
Frequently Asked Questions
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Flight Guides
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.