United Airlines is the most reliable airline on the IAH to TUS route with a 81% on-time rate, compared to SkyWest Airlines at 73%. Based on 973 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: IAH to TUS
Houston to Tucson — airline reliability comparison
On-Time Rate by Airline
United Airlines81%
SkyWest Airlines73%
IAH to TUS Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| United AirlinesUABest | 81% | 1.1% | 55m | 973 |
| SkyWest AirlinesOOWorst | 73% | 2.1% | 77m | 627 |
Route Overview
77%
Overall On-Time
63m
Avg Delay
1.5%
Cancel Rate
1,648
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.