Flight Check

Best Airline: ATL to AUS

Atlanta to Austin — airline reliability comparison

Southwest Airlines is the most reliable airline on the ATL to AUS route with a 80% on-time rate, compared to Frontier Airlines at 66%. Based on 4,297 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

Southwest Airlines80%
Delta Air Lines79%
Frontier Airlines66%

ATL to AUS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Southwest AirlinesWNBest80%0.6%50m4,297
Delta Air LinesDL79%1.2%55m10,863
Frontier AirlinesF9Worst66%3.1%95m434

Route Overview

78%
Overall On-Time
55m
Avg Delay
1.1%
Cancel Rate
15,609
Total Flights
ATL to AUS Route DetailsReturn: AUS to ATL
ATL AirportAUS Airport

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