$118 Cheap Frontier Airlines flights San Jose (SJC) to Denver (DEN)

Grab cheap round-trip Frontier Airlines flights from $211 from SJC to DEN by sorting your results from “Price (lowest to highest)” on Expedia. Or search for deals from $118 for a one-way trip.**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.

January is one of the cheapest months to jet away to Denver with Frontier Airlines. You could also find great prices on return and one-way fares in November.

To find cheap Frontier Airlines fares from Norman Y. Mineta San Jose Intl. Airport (SJC) to Denver Intl. Airport (DEN), start searching one to three months before your planned departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the cost. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**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.

Skip the layovers and fly from Norman Y. Mineta San Jose Intl. Airport (SJC) to Denver Intl. Airport (DEN) on one of Frontier Airlines’s 4 direct weekly flights. Use our “Nonstop” and “Airline” filters to find the Frontier Airlines flight that’ll take you to DEN at your preferred time.

The journey time for a direct Frontier Airlines flight from Norman Y. Mineta San Jose Intl. Airport (SJC) to Denver Intl. Airport (DEN) takes around 2h 44m.

The first flight from SJC to DEN with Frontier Airlines departs at 1:11PM UTC-8. You’ll land at 4:55PM UTC-7. The last Frontier Airlines flight of the day leaves at 1:11PM UTC-8 and arrives at 4:55PM UTC-7. With approximately 20% fewer cancellations for early and mid-morning departures, jetting out early is generally the best choice.**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.

Denver Intl. Airport (DEN) is the main Denver gateway for Frontier Airlines flights from Norman Y. Mineta San Jose Intl. Airport (SJC).

Travel from SJC to DEN with Frontier Airlines and you’ll enjoy a range of perks including a rewarding loyalty program. When booking through Expedia as a Frontier Miles and One Key™ member, you can 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.

Frontier Airlines generally operates Airbus A320neo planes for journeys from Norman Y. Mineta San Jose Intl. Airport (SJC) to Denver Intl. Airport (DEN). Bear in mind that aircraft type can vary depending on operational demands, so the plane you board might be different on your travel date.

Typically, you can cancel or reschedule your flight, although additional fees may apply if you made your booking more than 24 hours ago. Need flexible options? Make use of Expedia’s “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you need to adjust your plans. To modify your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for more details.