$69 Cheap United flights Spokane (GEG) to San Francisco (SFO)

Set the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines return flights from $137 from GEG to SFO. Affordable one-way fares from $69 are also available.**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.

Start searching one to three months ahead of your travel date to find cheap fares on United Airlines flights from Spokane Intl. Airport (GEG) to San Francisco Intl. Airport (SFO). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic trips.*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.

The earliest United Airlines flight from GEG to SFO takes off at 7:02AM UTC-8, arriving at 9:45AM UTC-8. If you want to head off later in the day, the last United Airlines flight leaves GEG at 4:20PM UTC-8 and touches down at SFO at 7:05PM UTC-8. Flying before midday is generally a good idea as morning flights are 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.

A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to leave from GEG to SFO with United Airlines. Plus, when you join Expedia's free One Key™ program, you can earn OneKeyCash™* in addition to United Airlines's loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.