$45 Cheap Frontier Airlines flights Phoenix (PHX) to San Francisco (SFO)

You’ll discover affordable round-trip Frontier Airlines flights from $85 from PHX to SFO by filtering your results from “Price (lowest to highest)” on Expedia. Or search for options from $45 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 more affordable in the off-peak months of February and April. Whether you’re in search of a return or one-way ticket, you could score a better deal then.

To find cheap Frontier Airlines fares from Sky Harbor Intl. Airport (PHX) to San Francisco Intl. Airport (SFO), start searching one to three months before your intended 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 how much you pay. Sunday is generally the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking 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.

Yes, you can travel from Sky Harbor Intl. Airport (PHX) to San Francisco Intl. Airport (SFO) on any of Frontier Airlines’s 4 weekly direct flights. Use our “Nonstop” and “Airline” filters to find the Frontier Airlines flight that’ll take you to SFO at a time that suits you.

Depart Sky Harbor Intl. Airport (PHX) for San Francisco Intl. Airport (SFO) on a direct Frontier Airlines flight, and you’ll be in the skies for around 2h 15m.

Taking off from PHX at 7:25AM UTC-7, the earliest Frontier Airlines flight to SFO lands at 8:40AM UTC-8. Flying earlier in the day means you’re less likely to experience delays.* Don’t like early starts? The last Frontier Airlines flight from PHX to SFO departs at 7:35AM UTC-7 and touches down at 8:50AM UTC-8.*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.

San Francisco Intl. Airport (SFO) is the main San Francisco gateway for Frontier Airlines flights from Sky Harbor Intl. Airport (PHX). Norman Y. Mineta San Jose Intl. Airport (SJC) and Oakland Intl. Airport (OAK) are alternative options. When planning your getaway with Expedia, select the “All Airports” option for your destination to see all available choices.

A rewarding loyalty program and the chance to rack up points through Frontier Miles are the start of the reasons to leave from PHX to SFO with Frontier Airlines. Plus, when you join our One Key™ program, you can receive OneKeyCash™* on top of any airline loyalty program earnings. It’s yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Frontier Airlines generally uses Airbus A320neo planes for journeys from Sky Harbor Intl. Airport (PHX) to San Francisco Intl. Airport (SFO). Bear in mind that aircraft type can differ depending on operational needs, so the plane you’ll be on might be different on your day of travel.

Depending on your fare type, a fee may apply if you cancel or change your flight more than 24 hours after it has been confirmed. To secure flexible plane tickets, select our “Changes included” or “No cancel fee” filter when you search for flights. For more details on modifying or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”