Flight Check

Best Airline: ATL to COS

Atlanta to Colorado Springs — airline reliability comparison

Delta Air Lines is the most reliable airline on the ATL to COS route with a 77% on-time rate. Based on 1,559 flights tracked.

This route involves high-congestion airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Delta Air Lines77%

ATL to COS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest77%0.9%58m1,559

Route Overview

77%
Overall On-Time
57m
Avg Delay
1%
Cancel Rate
1,559
Total Flights
ATL to COS Route DetailsReturn: COS to ATL
ATL AirportCOS Airport

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