Cheap Frontier Airlines flights from Denver to San Francisco (DEN→SFO)

You'll discover cheap round-trip Frontier Airlines flights from DEN to SFO by organising your results from "Price (lowest to highest)" on Expedia. Or look for bargains 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.

Frontier Airlines flights to San Francisco tend to be cheaper in the quieter months of February and April. Whether you're searching for a return or one-way ticket, you could score a better deal then.

Yes, you can travel from Denver Intl. Airport (DEN) to San Francisco Intl. Airport (SFO) on any of Frontier Airlines's 11 weekly direct flights. Apply Expedia's "Nonstop" and "Airline" filters to find the Frontier Airlines flight that'll get you to SFO at your preferred time.

Leave Denver Intl. Airport (DEN) for San Francisco Intl. Airport (SFO) on a direct Frontier Airlines flight, and you'll be airborne for around 2h 54m.

Frontier Airlines has the most flights from Denver Intl. Airport (DEN) to San Francisco Intl. Airport (SFO) on Saturday. With up to 2 daily departures, you'll get the most choice and flexibility on this day.

Frontier Airlines flights from Denver Intl. Airport (DEN) to San Francisco come in to San Francisco Intl. Airport (SFO), Norman Y. Mineta San Jose Intl. Airport (SJC) and Oakland Intl. Airport (OAK). The main San Francisco gateway for this airline is SFO. It's worth considering flights arriving at other nearby airports on Expedia as they may offer cheaper prices.

Frontier Airlines typically uses Airbus A321neo planes for flights from Denver Intl. Airport (DEN) to San Francisco Intl. Airport (SFO). This carrier also operates the Airbus A320neo on this route. Bear in mind that aircraft type can change due to operational requirements, so the plane you board could be different on the day.

Changes are generally free within 24 hours of booking, but your airline may charge you after that time. For more information about altering your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to adjust your plans without extra charges, check the "No cancel fee" or "Changes included" filter when planning your trip.