Flight Check

Best Airline: MDW to ATL

Chicago to Atlanta — airline reliability comparison

Delta Air Lines is the most reliable airline on the MDW to ATL route with a 86% on-time rate, compared to Frontier Airlines at 70%. Based on 5,059 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 Lines86%
Southwest Airlines80%
Frontier Airlines70%

MDW to ATL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest86%1.8%93m5,059
Southwest AirlinesWN80%1.1%54m6,084
Frontier AirlinesF9Worst70%2.5%73m1,851

Route Overview

81%
Overall On-Time
70m
Avg Delay
1.5%
Cancel Rate
12,994
Total Flights
MDW to ATL Route DetailsReturn: ATL to MDW
MDW AirportATL Airport

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