Flight Check

Best Airline: DEN to COS

Denver to Colorado Springs — airline reliability comparison

SkyWest Airlines is the most reliable airline on the DEN to COS route with a 78% on-time rate, compared to Southwest Airlines at 73%. Based on 11,070 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 Airlines78%
United Airlines75%
Southwest Airlines73%

DEN to COS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
SkyWest AirlinesOOBest78%1.9%74m11,070
United AirlinesUA75%1.0%70m1,863
Southwest AirlinesWNWorst73%0.7%55m4,405

Route Overview

76%
Overall On-Time
68m
Avg Delay
1.5%
Cancel Rate
17,343
Total Flights
DEN to COS Route DetailsReturn: COS to DEN
DEN AirportCOS Airport

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