Southwest Airlines is the most reliable airline on the HOU to SAT route with a 80% on-time rate. Based on 5,567 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: HOU to SAT
Houston to San Antonio — airline reliability comparison
On-Time Rate by Airline
Southwest Airlines80%
HOU to SAT Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 80% | 0.5% | 50m | 5,567 |
Route Overview
80%
Overall On-Time
51m
Avg Delay
0.6%
Cancel Rate
5,567
Total Flights
Flying out of HOU? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.