American Airlines is the most reliable airline on the DCA to SAT route with a 54% on-time rate. Based on 502 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: DCA to SAT
Washington to San Antonio — airline reliability comparison
On-Time Rate by Airline
American Airlines54%
DCA to SAT Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| American AirlinesAABest | 54% | 2.0% | 84m | 502 |
Route Overview
54%
Overall On-Time
85m
Avg Delay
2%
Cancel Rate
502
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.