$69 Cheap United flights Boise (BOI) to San Francisco (SFO)

Use the “Price (lowest to highest)” filter on Expedia to look for cheap United Airlines return flights from $137 from BOI to SFO. Affordable one-way options from $69 are also on offer.**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.

Browse for return or one-way flights to San Francisco in February or April. You could find lower fares with United Airlines during these off-peak times.

To find cheap United Airlines fares from Boise Airport (BOI) to San Francisco Intl. Airport (SFO), start searching one to three months before your planned departure. Reserving 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 impact the overall price. Sunday is generally 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.

Jet off on one of United Airlines’s 28 direct weekly flights from Boise Airport (BOI) to San Francisco Intl. Airport (SFO). To see your choices, enter your origin, dates and destination and hit search. Then select the “Nonstop” and “Airline” filters.

It takes around 2h 7m to travel nonstop from Boise Airport (BOI) to San Francisco Intl. Airport (SFO) with United Airlines.

United Airlines operates the most flights from Boise Airport (BOI) to San Francisco Intl. Airport (SFO) on Thursday. With up to 4 daily departures, you’ll get the most options and flexibility on this day.

The earliest flight from BOI to SFO with United Airlines leaves at 7:21AM UTC-7. You’ll touch down at 8:40AM UTC-8. The final United Airlines flight of the day takes off at 7:15PM UTC-7 and arrives at 8:14PM UTC-8. With around 20% fewer cancellations for morning and mid-morning departures, jetting out early is usually the smartest option.**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 United Airlines flights from Boise Airport (BOI). Oakland Intl. Airport (OAK) and Norman Y. Mineta San Jose Intl. Airport (SJC) are two other options. When planning your trip through Expedia, check the “All Airports” option for your destination to see everything that’s available.

A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to travel from BOI to SFO with United Airlines. Plus, when you join our One Key™ program, you can earn OneKeyCash™* alongside any airline loyalty program earnings. It’s yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the Boise Airport (BOI) to San Francisco Intl. Airport (SFO) route, United Airlines typically uses Embraer 175 and Airbus A319 planes. Keep in mind that last-minute changes are possible for operational reasons, meaning your flight may be on a different aircraft.

Depending on the type of ticket you purchased, a fee may apply if you cancel or change your booking more than 24 hours after it’s been confirmed. To find plane tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes when searching for flights. For additional information on modifying or canceling your reservation, visit “Trips,” select your flight and click on “Manage Booking.”