Route · TUS → IAH · 2020–2025 BTS data
Tucson to Houston
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), TUS to IAH (Tucson to Houston) ranks #3003 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 89.6%
- On-time
- +10.6 pts
- vs US avg
- 98 min
- Delay when late
- 3,753
- Flights
- #3003 of 4927
- Corpus placement
Cancelled
1.4%
Best Month
Nov 2023 95%
Worst Month
Jan 2024 78%
Distance
936 mi
Carriers
15
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| May 2025 | 39 | 4 | 1 | 0 | UA |
| Apr 2025 | 56 | 6 | 0 | 0 | OO,UA |
| Mar 2025 | 62 | 7 | 0 | 0 | OO,UA |
| Feb 2025 | 56 | 10 | 0 | 0 | OO,UA |
| Jan 2025 | 56 | 5 | 4 | 0 | OO,UA |
| Dec 2024 | 43 | 6 | 0 | 0 | UA |
| Oct 2024 | 52 | 3 | 0 | 0 | UA,OO |
| Sep 2024 | 48 | 6 | 0 | 0 | OO,UA |
| Aug 2024 | 55 | 5 | 1 | 0 | OO |
| Jul 2024 | 56 | 10 | 3 | 0 | OO |
| Jun 2024 | 32 | 6 | 0 | 1 | OO |
| May 2024 | 53 | 10 | 3 | 0 | OO,UA |
| Apr 2024 | 60 | 4 | 0 | 0 | OO,UA |
| Mar 2024 | 50 | 2 | 1 | 0 | OO,UA |
| Jan 2024 | 63 | 14 | 2 | 0 | OO,UA |
| Dec 2023 | 63 | 4 | 0 | 0 | OO,UA |
| Nov 2023 | 60 | 3 | 0 | 0 | OO,UA |
| Oct 2023 | 60 | 6 | 0 | 0 | OO,UA |
| Sep 2023 | 32 | 2 | 0 | 0 | OO,UA |
| Aug 2023 | 31 | 3 | 0 | 0 | OO |
| Jul 2023 | 36 | 9 | 0 | 0 | OO |
| Jun 2023 | 31 | 1 | 0 | 0 | OO |
| May 2023 | 59 | 7 | 1 | 3 | OO,UA |
| Apr 2023 | 31 | 0 | 0 | 0 | UA,OO |
TUS–IAH seasonal on-time pattern
Best: April (92.8%) · weakest: July (83.8%)
Strongest calendar month
April
92.8% on-time · ~51 flights/mo
Busiest calendar month
March
~83 flights/mo avg
Weakest calendar month
July
83.8% on-time · ~49 flights/mo
Cancellation Rate
1.4%
16 of 1,184 flights
Diversion Rate
0.3%
4 of 1,184 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
TUS - Tucson
Full on-time, delay-cause, and seasonal performance for Tucson, AZ.
TUS on-time profileIAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
IAH on-time profileCompare the two airports
See TUS and IAH side by side on delays, cancellations, and reliability.
Compare TUS vs IAHOrigin-hub reliability standing
Among TUS's stronger departures
TUS → IAH posts a 89.6% on-time rate, landing in the ≥85% band with 8 of 15 BTS-tracked routes leaving Tucson. The same hub also shows 7 mid-band and 0 challenged departures · fleet-wide on-time rank #182 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to TUS–IAH.
Routes with a similar on-time rate
What the Data Says About TUS to IAH
Tucson to Houston (TUS to IAH) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 89.6% on-time rate across 3,753 flights, with delays that do happen averaging 97.5 minutes. The corridor runs roughly 936 miles and is served by 15 carriers. Over the most recent 24 months, 16 of 1,184 flights were cancelled (1.4%) and 4 diverted (0.3%).
The monthly split is wide on this route: Nov 2023 posted the strongest performance at 95% on-time, while Jan 2024 came in at just 78% - a 17-point swing worth factoring into travel timing.
On the multi-year calendar, TUS–IAH peaks in April at 92.8% on-time while March carries the heaviest traffic (~83 flights per month) ; the softest month is July at 83.8%, a 9.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does TUS to IAH rank among US routes by traffic? ▼
How often are flights delayed from TUS to IAH? ▼
What is the cancellation rate for TUS to IAH? ▼
How far is the flight from TUS to IAH? ▼
When is the best time to fly from TUS to IAH? ▼
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 TUS–IAH data
TUS–IAH runs 10.6 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare TUS and IAH airport profiles: delay causes and top routes differ even on the same corridor. TUS airport
- If your dates flex, April (92.8% on-time) beats July (83.8%) on this corridor. Seasonal chart
- 4 other routes post a similar 89.6% 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.