Route · OKC → IAH · 2020–2025 BTS data
Oklahoma City to Houston
The OKC–IAH corridor (Oklahoma City, OK → Houston, TX) runs ahead of the national average, served by 17 carriers across roughly 395 miles.
Data updated 2026-06-13
- 84.7%
- On-time
- +5.7 pts
- vs US avg
- 83 min
- Delay when late
- 7,800
- Flights
Cancelled
1.1%
Best Month
Sep 2025 96%
Worst Month
Jun 2025 70%
Distance
395 mi
Carriers
17
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 107 | 22 | 0 | 1 | UA,OO |
| Nov 2025 | 82 | 18 | 0 | 0 | OO,UA |
| Oct 2025 | 98 | 8 | 0 | 0 | OO,UA |
| Sep 2025 | 80 | 3 | 0 | 0 | UA,OO |
| Aug 2025 | 137 | 29 | 0 | 1 | OO,UA |
| Jul 2025 | 206 | 34 | 2 | 4 | OO,UA |
| Jun 2025 | 167 | 50 | 6 | 2 | OO,UA |
| May 2025 | 134 | 36 | 1 | 0 | OO |
| Apr 2025 | 126 | 33 | 0 | 0 | OO |
| Mar 2025 | 140 | 20 | 0 | 0 | OO |
| Feb 2025 | 81 | 13 | 2 | 1 | OO |
| Jan 2025 | 62 | 13 | 3 | 0 | OO |
| Dec 2024 | 64 | 5 | 1 | 1 | OO |
| Nov 2024 | 81 | 15 | 0 | 1 | OO |
| Oct 2024 | 66 | 5 | 0 | 0 | OO |
| Sep 2024 | 62 | 4 | 0 | 0 | OO |
| Aug 2024 | 75 | 6 | 0 | 0 | OO |
| Jul 2024 | 77 | 16 | 5 | 1 | OO |
| Jun 2024 | 103 | 20 | 1 | 1 | OO,UA |
| May 2024 | 75 | 21 | 2 | 2 | OO,UA |
| Apr 2024 | 56 | 8 | 0 | 0 | OO |
| Jan 2024 | 31 | 6 | 2 | 0 | OO |
| Oct 2023 | 56 | 11 | 0 | 0 | OO |
| Jul 2023 | 48 | 12 | 0 | 0 | OO |
Cancellation Rate
1.1%
25 of 2,214 flights
Diversion Rate
0.7%
15 of 2,214 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
OKC - Oklahoma City
Full on-time, delay-cause, and seasonal performance for Oklahoma City, OK.
Origin airport →IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Destination airport →Compare the two airports
See OKC and IAH side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to OKC–IAH.
Routes with a similar on-time rate
What the Data Says About OKC to IAH
Bureau of Transportation Statistics records show Oklahoma City to Houston (OKC to IAH) running a 84.7% on-time rate over 7,800 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 82.5 minutes. The 395-mile corridor is served by 17 carriers, and over the last 24 months 1.1% of 2,214 flights were cancelled, 0.7% diverted.
The monthly split is wide on this route: Sep 2025 posted the strongest performance at 96% on-time, while Jun 2025 came in at just 70% - a 26-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.