Route · PIT → IAH · 2020–2025 BTS data
Pittsburgh to Houston
The PIT–IAH corridor (Pittsburgh, PA → Houston, TX) runs ahead of the national average, served by 13 carriers across roughly 1,117 miles.
Data updated 2026-06-13
- 84.8%
- On-time
- +5.8 pts
- vs US avg
- 78 min
- Delay when late
- 4,770
- Flights
Cancelled
1.6%
Best Month
Oct 2024 98%
Worst Month
Jul 2024 65%
Distance
1,117 mi
Carriers
13
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 75 | 14 | 0 | 0 | UA |
| Nov 2025 | 77 | 10 | 0 | 0 | UA |
| Oct 2025 | 66 | 10 | 0 | 0 | UA |
| Sep 2025 | 49 | 4 | 0 | 0 | UA |
| Aug 2025 | 48 | 10 | 0 | 0 | OO,UA |
| Jul 2025 | 48 | 10 | 0 | 1 | OO,UA |
| Jun 2025 | 49 | 15 | 2 | 0 | OO,UA |
| May 2025 | 57 | 14 | 1 | 0 | UA |
| Apr 2025 | 30 | 6 | 0 | 0 | UA |
| Mar 2025 | 35 | 2 | 0 | 0 | UA |
| Feb 2025 | 48 | 11 | 0 | 0 | UA |
| Jan 2025 | 49 | 16 | 1 | 0 | UA |
| Dec 2024 | 57 | 12 | 1 | 0 | OO,UA |
| Nov 2024 | 53 | 4 | 0 | 0 | UA |
| Oct 2024 | 58 | 1 | 0 | 0 | UA |
| Sep 2024 | 58 | 5 | 1 | 0 | UA,NK |
| Aug 2024 | 83 | 20 | 1 | 0 | NK,UA |
| Jul 2024 | 83 | 29 | 11 | 0 | NK,UA |
| Jun 2024 | 76 | 15 | 1 | 1 | NK,UA |
| May 2024 | 55 | 14 | 1 | 3 | UA |
| Jan 2024 | 39 | 8 | 1 | 0 | UA |
| Dec 2023 | 61 | 3 | 1 | 0 | UA |
| Nov 2023 | 59 | 7 | 0 | 0 | UA |
| Oct 2023 | 80 | 7 | 0 | 0 | OO,UA |
Cancellation Rate
1.6%
22 of 1,393 flights
Diversion Rate
0.4%
5 of 1,393 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PIT - Pittsburgh
Full on-time, delay-cause, and seasonal performance for Pittsburgh, PA.
Origin airport →IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Destination airport →Compare the two airports
See PIT 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 PIT–IAH.
Routes with a similar on-time rate
What the Data Says About PIT to IAH
Bureau of Transportation Statistics records show Pittsburgh to Houston (PIT to IAH) running a 84.8% on-time rate over 4,770 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 77.7 minutes. The 1,117-mile corridor is served by 13 carriers, and over the last 24 months 1.6% of 1,393 flights were cancelled, 0.4% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 98% on-time, while Jul 2024 came in at just 65% - a 33-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.