Flight Check

Best Airline: DAL to DEN

Dallas to Denver — airline reliability comparison

Southwest Airlines is the most reliable airline on the DAL to DEN route with a 75% on-time rate. Based on 11,566 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

Southwest Airlines75%

DAL to DEN Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Southwest AirlinesWNBest75%1.7%55m11,566

Route Overview

75%
Overall On-Time
56m
Avg Delay
1.7%
Cancel Rate
11,566
Total Flights
DAL to DEN Route DetailsReturn: DEN to DAL
DAL AirportDEN Airport

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