$105 Cheap Frontier Airlines flights Buffalo (BUF) to San Francisco (SFO)

Grab budget-friendly return Frontier Airlines flights from $210 from BUF to SFO by organizing your results from “Price (lowest to highest)” on Expedia. Or search for deals from $105 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.

Search for return or one-way flights to San Francisco in February or April. You could find a cheap fare with Frontier Airlines during these quieter months.

Search for affordable Frontier Airlines flights from Buffalo Niagara Intl. Airport (BUF) to San Francisco Intl. Airport (SFO) one to three months before your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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.

Enter your dates, hit search and select the “Nonstop” filter on Expedia to find any direct flights from BUF to SFO with Frontier Airlines or another airline.

Browse Frontier Airlines’s earliest flights from BUF to SFO by checking our “Morning” and “Early Morning” filters. Not only will you get to where you’re going sooner, early departures are also 20% less likely to be canceled.**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.

Catch a Frontier Airlines flight from Buffalo Niagara Intl. Airport (BUF) to San Francisco, and you’ll most likely touch down at San Francisco Intl. Airport (SFO). This is the airline’s main hub in this city.

Fly from BUF to SFO with Frontier Airlines and you’ll enjoy a range of benefits including a rewarding loyalty program. When booking through Expedia as a Frontier Miles and One Key™ member, you could also earn OneKeyCash™* to spend on select future travel purchases.*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 making your booking, but your airline may charge a fee after that. For more details about altering your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without being charged, check the “Changes included” and “No cancel fee” filters when planning your next escape.