Route · IAH → TUS · 2020–2025 BTS data
Houston to Tucson
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAH to TUS (Houston to Tucson) ranks #3000 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 82.2%
- On-time
- +3.2 pts
- vs US avg
- 70 min
- Delay when late
- 3,757
- Flights
- #3000 of 4927
- Corpus placement
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 |
IAH–TUS seasonal on-time pattern
Best: November (90.4%) · weakest: June (70.0%)
Strongest calendar month
November
90.4% on-time · ~73 flights/mo
Busiest calendar month
March
~83 flights/mo avg
Weakest calendar month
June
70.0% on-time · ~43 flights/mo
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.
IAH on-time profileTUS - Tucson
Full on-time, delay-cause, and seasonal performance for Tucson, AZ.
TUS on-time profileCompare the two airports
See IAH and TUS side by side on delays, cancellations, and reliability.
Compare IAH vs TUSOrigin-hub reliability standing
Mid-pack among IAH departures
From IAH, this corridor sits with 79 other 75–85% on-time routes out of 102 tracked departures, not the hub's reliability leaders (17 at ≥85%) and not the softest ( 6 below 75%). Destination: Tucson · fleet on-time rank #2268 of 4927.
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.
On the multi-year calendar, IAH–TUS peaks in November at 90.4% on-time while March carries the heaviest traffic (~83 flights per month) ; the softest month is June at 70.0%, a 20.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does IAH to TUS rank among US routes by traffic? ▼
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? ▼
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Airports on this route
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.
Using IAH–TUS data
IAH–TUS runs 3.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare IAH and TUS airport profiles: delay causes and top routes differ even on the same corridor. IAH airport
- If your dates flex, November (90.4% on-time) beats June (70.0%) on this corridor. Seasonal chart
- 4 other routes post a similar 82.2% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.