Flight Check

Best Airline: MSO to DEN

Missoula to Denver — airline reliability comparison

United Airlines is the most reliable airline on the MSO to DEN route with a 80% on-time rate, compared to Frontier Airlines at 64%. Based on 2,827 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 Airlines80%
SkyWest Airlines73%
Frontier Airlines64%

MSO to DEN Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest80%0.8%92m2,827
SkyWest AirlinesOO73%1.1%88m1,131
Frontier AirlinesF9Worst64%2.3%54m77

Route Overview

78%
Overall On-Time
90m
Avg Delay
1%
Cancel Rate
4,082
Total Flights
MSO to DEN Route DetailsReturn: DEN to MSO
MSO AirportDEN Airport

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