Cheap Spirit Airlines flights Chicago (ORD) to Denver (DEN)

Use the “Price (lowest to highest)” filter on Expedia to look for cheap Spirit Airlines return flights from ORD to DEN. Affordable one-way fares are also available.**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 round-trip or one-way flights to Denver in January or November. You could find a cheap fare with Spirit Airlines during these off-peak travel months.

Begin your search one to three months ahead of your travel date to score cheap fares on Spirit Airlines flights from O’Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN). 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 right, 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.

To figure out if there’s a direct route from ORD to DEN with Spirit Airlines or other airlines, use our “Nonstop” filter when searching for tickets.

Search Spirit Airlines’s earliest flights from ORD to DEN by checking the “Early Morning” and “Morning” filters. Not only will you get to where you’re going sooner, early departures also have a 20% less chance of being 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.

Spirit Airlines flights from O’Hare Intl. Airport (ORD) to Denver arrive at Denver Intl. Airport (DEN). This is the main entry point to this city.

Travel from ORD to DEN with Spirit Airlines and enjoy a host of benefits including a rewarding loyalty program. When you book through Expedia as a Free Spirit and One Key™ member, you could also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making a booking, but your airline may charge you after that. For more information about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to make changes without being charged, check the “Changes included” or “No cancel fee” filter when planning your next adventure.