Flight Check

Best Airline: DEN to AUS

Denver to Austin — airline reliability comparison

United Airlines is the most reliable airline on the DEN to AUS route with a 79% on-time rate, compared to Frontier Airlines at 73%. Based on 6,503 flights tracked.

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

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

United Airlines79%
SkyWest Airlines79%
American Airlines76%
Southwest Airlines75%
Frontier Airlines73%

DEN to AUS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest79%0.7%63m6,503
SkyWest AirlinesOO79%0.5%82m552
American AirlinesAA76%0.0%115m59
Southwest AirlinesWN75%1.1%53m8,780
Frontier AirlinesF9Worst73%1.1%61m1,399

Route Overview

77%
Overall On-Time
58m
Avg Delay
0.9%
Cancel Rate
17,305
Total Flights
DEN to AUS Route DetailsReturn: AUS to DEN
DEN AirportAUS Airport

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