Flight Check

Best Airline: MKE to ATL

Milwaukee to Atlanta — airline reliability comparison

Delta Air Lines is the most reliable airline on the MKE to ATL route with a 88% on-time rate, compared to Frontier Airlines at 73%. Based on 7,375 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 Lines88%
Southwest Airlines87%
Frontier Airlines73%

MKE to ATL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest88%1.5%79m7,375
Southwest AirlinesWN87%0.7%44m1,018
Frontier AirlinesF9Worst73%0.0%99m15

Route Overview

88%
Overall On-Time
76m
Avg Delay
1.3%
Cancel Rate
8,462
Total Flights
MKE to ATL Route DetailsReturn: ATL to MKE
MKE AirportATL Airport

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