How often are ORD to GRB flights on time?

Flights from Chicago (ORD) to Green Bay (GRB) arrive on time 81% of the time across 16,910 flights of official data.

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

American Airlines has the best on-time record on this route at 84% across 7,059 flights.

Route reliability

Flights from Chicago to Green Bay arrive on time 81% of the time across 16,910 flights. Here’s how each airline really performs.

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On-time rate

16,910 flights

Airline	On-time	Flights
American Airlines	84%	7,059
United Airlines	78%	9,851

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

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