Flight Check

Best Airline: SFO to AUS

San Francisco to Austin — airline reliability comparison

United Airlines is the most reliable airline on the SFO to AUS route with a 84% on-time rate, compared to Southwest Airlines at 47%. Based on 5,132 flights tracked.

This route involves high-congestion airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

United Airlines84%
Alaska Airlines83%
SkyWest Airlines81%
Delta Air Lines61%
Southwest Airlines47%

SFO to AUS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest84%1.0%62m5,132
Alaska AirlinesAS83%1.4%61m2,054
SkyWest AirlinesOO81%0.0%52m88
Delta Air LinesDL61%1.5%84m528
Southwest AirlinesWNWorst47%0.0%61m398

Route Overview

81%
Overall On-Time
62m
Avg Delay
1%
Cancel Rate
8,246
Total Flights
SFO to AUS Route DetailsReturn: AUS to SFO
SFO AirportAUS Airport

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Data last updated October 2026. Source: Bureau of Transportation Statistics.