How often are ATL to MDW flights on time?

Flights from Atlanta (ATL) to Chicago (MDW) arrive on time 83% of the time across 21,082 flights of official data.

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

Delta Air Lines has the best on-time record on this route at 87% across 8,367 flights.

Route reliability

Flights from Atlanta to Chicago arrive on time 83% of the time across 21,082 flights. Here’s how each airline really performs.

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On-time rate

21,082 flights

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

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Nonstop vs. Connecting Flights: The Reliability Trade-off

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Do Morning Flights Really Have Fewer Delays?

Yes — and there's a clear reason. How delays snowball through the day.

Are Some Airlines Really More Reliable Than Others?

The reliability gap between airlines is real — here's what actually drives it.

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