Cheap Spirit Airlines flights Oakland (OAK) to Denver (DEN)

You’ll discover cheap return Spirit Airlines flights from OAK to DEN by sorting your results from “Price (lowest to highest)” on Expedia. Or search for deals for a one-way journey.**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.

Spirit Airlines flights to Denver are typically cheaper in the off-peak months of January and November. Whether you’re in search of a round-trip or one-way ticket, you could find a better deal then.

Start searching one to three months ahead of your departure date to get cheap fares on Spirit Airlines flights from Oakland Intl. Airport (OAK) 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 journeys.*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 see if there’s a direct route from OAK to DEN with Spirit Airlines or other carriers, select the “Nonstop” filter when looking for tickets.

To find the earliest departures from OAK to DEN with Spirit Airlines, filter your results by “Morning” and “Early Morning.” Choosing an early flight usually means you’re 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.

Take a Spirit Airlines flight from Oakland Intl. Airport (OAK) to Denver, and you’ll probably arrive at Denver Intl. Airport (DEN). This is the airline’s primary hub in this city.

Offering a rewarding loyalty program, Spirit Airlines is a top choice for many passengers departing from OAK to DEN. Plus, if you’re a Free Spirit and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of booking, but your airline may charge a fee after that. For more information about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to make changes without additional costs, apply the “Changes included” or “No cancel fee” filter when planning your next escape.