How often are ORD to PIT flights on time?

Flights from Chicago (ORD) to Pittsburgh (PIT) arrive on time 84% of the time across 18,616 flights of official data.

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

United Airlines has the best on-time record on this route at 88% across 10,682 flights.

Route reliability

Flights from Chicago to Pittsburgh arrive on time 84% of the time across 18,616 flights. Here’s how each airline really performs.

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On-time rate

18,616 flights

Airline	On-time	Flights
United Airlines	88%	10,682
American Airlines	79%	7,934

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

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