Flight Check

Best Airline: DAL to ATL

Dallas to Atlanta — airline reliability comparison

Delta Air Lines is the most reliable airline on the DAL to ATL route with a 81% on-time rate, compared to Southwest Airlines at 77%. Based on 6,381 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 Lines81%
Southwest Airlines77%

DAL to ATL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest81%1.5%93m6,381
Southwest AirlinesWNWorst77%1.5%56m6,023

Route Overview

79%
Overall On-Time
74m
Avg Delay
1.5%
Cancel Rate
12,404
Total Flights
DAL to ATL Route DetailsReturn: ATL to DAL
DAL AirportATL Airport

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