$109 Cheap United flights Chicago (ORD) to Colorado Springs (COS)

Make use of the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines return flights from $221 from ORD to COS. Affordable one-way options from $109 are also on offer.**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.

Begin your search one to three months before your departure to get cheap fares on United Airlines flights from O'Hare Intl. Airport (ORD) to Colorado Springs Airport (COS). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic flights.*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 earliest United Airlines flight from ORD to COS departs at 9:30AM UTC-6, arriving at 11:34AM UTC-7. If you'd like to head off later in the day, the last United Airlines flight leaves ORD at 9:30AM UTC-6 and lands at COS at 11:34AM UTC-7. Flying before noon is often a smart choice as morning flights are 20% less likely to be canceled.**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.

Fly from ORD to COS with United Airlines and you can look forward to a range of perks starting with a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.