How often are BWI to MDW flights on time?

Flights from Baltimore (BWI) to Chicago (MDW) arrive on time 80% of the time across 12,172 flights of official data.

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

Southwest Airlines has the best on-time record on this route at 80% across 11,873 flights.

Route reliability

Flights from Baltimore to Chicago arrive on time 80% of the time across 12,172 flights. Here’s how each airline really performs.

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On-time rate

12,172 flights

Airline	On-time	Flights
Southwest Airlines	80%	11,873
Frontier Airlines	74%	299

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

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

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