Cheap Alaska Airlines flights San Jose (SJC) to Denver (DEN)

Landing cheap one-way Alaska Airlines flights from SJC to DEN on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares for your next exciting adventure.**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.

Alaska Airlines flights to Denver tend to be cheaper in the low-season months of January and November. Whether you’re searching for a return or one-way ticket, you could land a better deal then.

Begin your search one to three months ahead of your departure date to score cheaper fares on Alaska Airlines flights from Norman Y. Mineta San Jose Intl. Airport (SJC) 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 the 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.

Fill in your dates, click search and check “Nonstop” on Expedia to browse any direct flights from SJC to DEN with Alaska Airlines or another airline.

Sort your results by “Morning” and “Early Morning” to find the earliest departures from SJC to DEN. Jetting off early means you’re 20% 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.

Alaska Airlines flights from Norman Y. Mineta San Jose Intl. Airport (SJC) to Denver come in to land at Denver Intl. Airport (DEN). This is the main entry point to this destination.

Alaska Airlines makes traveling from SJC to DEN enjoyable with top-tier customer service and a rewarding loyalty program. You also have the chance to earn points with Mileage Plan. Make sure you sign up to Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee generally applies if you cancel or change your flight more than 24 hours after it’s been confirmed. To secure plane tickets with more flexibility, select our “Changes included” or “No cancel fee” filter while looking for flights. For additional information on changing or canceling your reservation, head to “Trips,” select your flight and tick “Manage Booking.”