Flight Check

Best Airline: DEN to RSW

Denver to Fort Myers — airline reliability comparison

United Airlines is the most reliable airline on the DEN to RSW route with a 81% on-time rate, compared to Southwest Airlines at 69%. Based on 2,441 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 Airlines81%
Frontier Airlines78%
Southwest Airlines69%

DEN to RSW Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest81%0.9%62m2,441
Frontier AirlinesF978%2.0%55m203
Southwest AirlinesWNWorst69%0.6%57m647

Route Overview

78%
Overall On-Time
61m
Avg Delay
0.9%
Cancel Rate
3,438
Total Flights
DEN to RSW Route DetailsReturn: RSW to DEN
DEN AirportRSW Airport

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