Flight Check

Best Airline: CMH to DEN

Columbus to Denver — airline reliability comparison

United Airlines is the most reliable airline on the CMH to DEN route with a 81% on-time rate, compared to Frontier Airlines at 76%. Based on 2,611 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%
Southwest Airlines80%
Frontier Airlines76%

CMH to DEN Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest81%0.6%66m2,611
Southwest AirlinesWN80%0.5%61m3,340
Frontier AirlinesF9Worst76%2.5%70m243

Route Overview

81%
Overall On-Time
64m
Avg Delay
0.6%
Cancel Rate
6,289
Total Flights
CMH to DEN Route DetailsReturn: DEN to CMH
CMH AirportDEN Airport

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