Flight Check

Best Airline: DEN to MEM

Denver to Memphis — airline reliability comparison

Frontier Airlines is the most reliable airline on the DEN to MEM route with a 84% on-time rate, compared to Southwest Airlines at 64%. Based on 456 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

Frontier Airlines84%
United Airlines78%
SkyWest Airlines76%
Southwest Airlines64%

DEN to MEM Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Frontier AirlinesF9Best84%0.5%51m456
United AirlinesUA78%0.9%65m2,451
SkyWest AirlinesOO76%4.4%67m159
Southwest AirlinesWNWorst64%0.8%57m1,476

Route Overview

74%
Overall On-Time
62m
Avg Delay
0.9%
Cancel Rate
4,611
Total Flights
DEN to MEM Route DetailsReturn: MEM to DEN
DEN AirportMEM Airport

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