How often are ATL to MKE flights on time?

Flights from Atlanta (ATL) to Milwaukee (MKE) arrive on time 87% of the time across 14,235 flights of official data.

Which airline is most reliable on the ATL to MKE route?

Delta Air Lines has the best on-time record on this route at 87% across 12,380 flights.

Route reliability

Flights from Atlanta to Milwaukee arrive on time 87% of the time across 14,235 flights. Here’s how each airline really performs.

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On-time rate

14,235 flights

Airline	On-time	Flights
Delta Air Lines	87%	12,380
Southwest Airlines	84%	1,855

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg MKE → ATL.

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Score real ATL–MKE flights on reliability, weather, and connection safety — not just price.

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