Flight Check

Best Airline: DEN to GEG

Denver to Spokane — airline reliability comparison

SkyWest Airlines is the most reliable airline on the DEN to GEG route with a 88% on-time rate, compared to Southwest Airlines at 72%. Based on 621 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

SkyWest Airlines88%
Frontier Airlines83%
United Airlines77%
Southwest Airlines72%

DEN to GEG Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
SkyWest AirlinesOOBest88%0.4%36m621
Frontier AirlinesF983%0.0%35m90
United AirlinesUA77%0.8%60m3,064
Southwest AirlinesWNWorst72%0.5%48m3,144

Route Overview

75%
Overall On-Time
53m
Avg Delay
0.6%
Cancel Rate
6,983
Total Flights
DEN to GEG Route DetailsReturn: GEG to DEN
DEN AirportGEG Airport

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