$69 Cheap United flights Dallas (DFW) to Denver (DEN)

Apply the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines round-trip flights from $139 from DFW to DEN. Affordable one-way options from $69 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.

Start searching one to three months ahead of your departure date to score cheap fares on United Airlines flights from Dallas-Fort Worth Intl. Airport (DFW) 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.* Time it well, and you can enjoy significant savings on domestic trips.*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 DFW to DEN takes off at 7:30AM UTC-6, landing at 8:40AM UTC-7. If you prefer to set off later, the last United Airlines flight leaves DFW at 4:55PM UTC-6 and touches down at DEN at 6:12PM UTC-7. Flying before midday is often a good idea as morning and mid-morning flights are least 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 top pick for many travelers departing from DFW to DEN. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you could 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.