Alaska Airlines is the most reliable airline on the AUS to SAN route with a 78% on-time rate, compared to Frontier Airlines at 70%. Based on 1,212 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: AUS to SAN
Austin to San Diego — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines78%
SkyWest Airlines75%
Southwest Airlines74%
Frontier Airlines70%
AUS to SAN Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 78% | 2.6% | 51m | 1,212 |
| SkyWest AirlinesOO | 75% | 1.2% | 60m | 1,534 |
| Southwest AirlinesWN | 74% | 0.7% | 55m | 4,926 |
| Frontier AirlinesF9Worst | 70% | 4.4% | 80m | 122 |
Route Overview
75%
Overall On-Time
56m
Avg Delay
1.1%
Cancel Rate
7,867
Total Flights
Flying out of AUS? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.