Route · IAH → OKC · 2020–2025 BTS data
Houston to Oklahoma City
The IAH–OKC corridor (Houston, TX → Oklahoma City, OK) runs ahead of the national average, served by 15 carriers across roughly 395 miles.
Data updated 2026-06-13
- 81.3%
- On-time
- +2.3 pts
- vs US avg
- 85 min
- Delay when late
- 7,967
- Flights
Cancelled
1.5%
Best Month
Oct 2025 88%
Worst Month
May 2024 55%
Distance
395 mi
Carriers
15
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 109 | 20 | 0 | 1 | UA,OO |
| Nov 2025 | 82 | 18 | 0 | 0 | OO,UA |
| Oct 2025 | 97 | 12 | 0 | 0 | OO,UA |
| Sep 2025 | 80 | 11 | 0 | 0 | UA,OO |
| Aug 2025 | 136 | 29 | 0 | 0 | OO,UA |
| Jul 2025 | 206 | 55 | 2 | 1 | OO,UA |
| Jun 2025 | 167 | 56 | 4 | 0 | OO,UA |
| May 2025 | 136 | 42 | 1 | 2 | OO |
| Apr 2025 | 126 | 31 | 0 | 2 | OO |
| Mar 2025 | 141 | 35 | 0 | 0 | OO |
| Feb 2025 | 82 | 25 | 2 | 0 | OO |
| Jan 2025 | 62 | 16 | 4 | 0 | OO |
| Dec 2024 | 65 | 16 | 2 | 0 | OO |
| Nov 2024 | 81 | 17 | 1 | 0 | OO |
| Oct 2024 | 66 | 10 | 0 | 0 | OO |
| Sep 2024 | 62 | 10 | 0 | 0 | OO |
| Aug 2024 | 75 | 13 | 1 | 0 | OO |
| Jul 2024 | 78 | 27 | 10 | 0 | OO |
| Jun 2024 | 102 | 37 | 1 | 1 | OO,UA |
| May 2024 | 76 | 34 | 2 | 1 | OO,UA |
| Apr 2024 | 56 | 10 | 0 | 2 | OO |
| Mar 2024 | 31 | 2 | 0 | 0 | OO |
| Feb 2024 | 30 | 4 | 0 | 0 | OO,UA |
| Jan 2024 | 51 | 7 | 4 | 1 | OO |
Cancellation Rate
1.5%
34 of 2,197 flights
Diversion Rate
0.5%
11 of 2,197 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 →OKC - Oklahoma City
Full on-time, delay-cause, and seasonal performance for Oklahoma City, OK.
Destination airport →Compare the two airports
See IAH and OKC 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–OKC.
Routes with a similar on-time rate
What the Data Says About IAH to OKC
7,967 tracked flights put the IAH to OKC pairing (Houston to Oklahoma City) at a 81.3% on-time rate, squarely in line with the wider network. Delays that do occur run 84.7 minutes on average. Across the 395-mile route and its 15 carriers, the trailing 24 months show 1.5% cancelled and 0.5% diverted (2,197 flights sampled).
The monthly split is wide on this route: Oct 2025 posted the strongest performance at 88% on-time, while May 2024 came in at just 55% - a 32-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.