Alaska Airlines is the most reliable airline on the SAN to AUS route with a 78% on-time rate, compared to Frontier Airlines at 70%. Based on 1,201 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SAN to AUS
San Diego to Austin — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines78%
SkyWest Airlines76%
Southwest Airlines74%
Frontier Airlines70%
SAN to AUS Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 78% | 3.8% | 51m | 1,201 |
| SkyWest AirlinesOO | 76% | 0.9% | 62m | 1,535 |
| Southwest AirlinesWN | 74% | 0.9% | 50m | 4,935 |
| Frontier AirlinesF9Worst | 70% | 1.9% | 48m | 122 |
Route Overview
75%
Overall On-Time
52m
Avg Delay
1.1%
Cancel Rate
7,875
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.