Route · IAH → TUS · 2020–2025 BTS data
Houston to Tucson
The IAH–TUS corridor (Houston, TX → Tucson, AZ) runs ahead of the national average, served by 14 carriers across roughly 936 miles.
Data updated 2026-06-13
- 82.2%
- On-time
- +3.2 pts
- vs US avg
- 70 min
- Delay when late
- 3,757
- Flights
Cancelled
1.7%
Best Month
Nov 2023 93%
Worst Month
Jul 2024 61%
Distance
936 mi
Carriers
14
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| May 2025 | 38 | 4 | 1 | 0 | UA |
| Apr 2025 | 56 | 14 | 0 | 0 | OO,UA |
| Mar 2025 | 62 | 13 | 0 | 0 | OO,UA |
| Feb 2025 | 56 | 9 | 0 | 0 | OO,UA |
| Jan 2025 | 56 | 8 | 4 | 0 | OO,UA |
| Dec 2024 | 43 | 13 | 1 | 0 | UA |
| Oct 2024 | 52 | 6 | 0 | 0 | UA,OO |
| Sep 2024 | 48 | 11 | 0 | 0 | OO,UA |
| Aug 2024 | 56 | 8 | 1 | 0 | OO |
| Jul 2024 | 56 | 22 | 7 | 1 | OO |
| Jun 2024 | 32 | 10 | 0 | 0 | OO |
| May 2024 | 53 | 17 | 3 | 0 | OO,UA |
| Apr 2024 | 60 | 15 | 0 | 0 | OO,UA |
| Mar 2024 | 50 | 11 | 1 | 0 | OO,UA |
| Jan 2024 | 62 | 19 | 1 | 0 | OO,UA |
| Dec 2023 | 63 | 12 | 0 | 0 | OO,UA |
| Nov 2023 | 60 | 4 | 0 | 0 | OO,UA |
| Oct 2023 | 60 | 9 | 0 | 0 | OO,UA |
| Sep 2023 | 32 | 8 | 0 | 0 | OO,UA |
| Aug 2023 | 31 | 12 | 0 | 1 | OO |
| Jul 2023 | 36 | 10 | 0 | 0 | OO |
| Jun 2023 | 31 | 19 | 0 | 0 | OO |
| May 2023 | 58 | 8 | 1 | 0 | OO,UA |
| Apr 2023 | 31 | 9 | 0 | 0 | UA,OO |
Cancellation Rate
1.7%
20 of 1,182 flights
Diversion Rate
0.2%
2 of 1,182 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 →TUS - Tucson
Full on-time, delay-cause, and seasonal performance for Tucson, AZ.
Destination airport →Compare the two airports
See IAH and TUS 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–TUS.
Routes with a similar on-time rate
What the Data Says About IAH to TUS
Bureau of Transportation Statistics records show Houston to Tucson (IAH to TUS) running a 82.2% on-time rate over 3,757 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 69.9 minutes. The 936-mile corridor is served by 14 carriers, and over the last 24 months 1.7% of 1,182 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Nov 2023 posted the strongest performance at 93% on-time, while Jul 2024 came in at just 61% - a 33-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from IAH to TUS? ▼
What is the cancellation rate for IAH to TUS? ▼
How far is the flight from IAH to TUS? ▼
When is the best time to fly from IAH to TUS? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.