$144 Cheap United flights Kalispell (FCA) to Chicago (ORD)

Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines return flights from $201 from FCA to ORD. Affordable one-way tickets from $144 are available too.**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 United Airlines flights from Glacier Park Intl. Airport (FCA) to O'Hare Intl. Airport (ORD) one to three months before your departure day. 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. No matter the fare class and itinerary, the ideal day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel 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.

The first United Airlines flight from FCA to ORD takes off at 12:34PM UTC-7, arriving at 5:10PM UTC-6. If you'd like to head off later in the day, the last United Airlines flight leaves FCA at 12:34PM UTC-7 and touches down at ORD at 5:10PM UTC-6. Flying early is often a good option as morning and mid-morning flights are less likely to experience cancellations.**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.

With a rewarding loyalty program, United Airlines is a favorite of many travelers heading from FCA to ORD. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.