$174 Cheap American Airlines flights Chicago (ORD) to Green Bay (GRB)

You'll discover cheap round-trip American Airlines flights from $179 from ORD to GRB by sorting your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $174 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for affordable American Airlines flights from O'Hare Intl. Airport (ORD) to Austin Straubel Intl. Airport (GRB) one to three months before your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

Leaving ORD at 9:55AM UTC-6, the first American Airlines flight to GRB arrives at 11:05AM UTC-6. Flying early means you're less likely to encounter delays.* Not a morning person? The last American Airlines flight from ORD to GRB departs at 8:35PM UTC-6 and touches down at 9:51PM UTC-6.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.