How often are MDT to ORD flights on time?

Flights from Harrisburg (MDT) to Chicago (ORD) arrive on time 87% of the time across 11,974 flights of official data.

Which airline is most reliable on the MDT to ORD route?

American Airlines has the best on-time record on this route at 87% across 5,072 flights.

Route reliability

Flights from Harrisburg to Chicago arrive on time 87% of the time across 11,974 flights. Here’s how each airline really performs.

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On-time rate

11,974 flights

Airline	On-time	Flights
American Airlines	87%	5,072
United Airlines	86%	6,902

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

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

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