£88 Cheap Flights from Boston (BOS) to San Francisco (SFO)

Popular airlines from Logan International Airport (BOS) to San Francisco International Airport (SFO)

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Cheap Flights from Boston (BOS) to San Francisco (SFO)

Prices were available within the past 7 days and start at £88 for one-way flights and £125 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Delta
Alaska Airlines
Hawaiian Airlines
Alaska Airlines
JetBlue Airways
American Airlines

Find the cheapest month to fly from Boston (BOS) to San Francisco (SFO)

October is typically the cheapest month to fly

From £118 - £206 per traveller.

Graph displaying average flight prices per month

Flight from Boston to San Francisco route information
Origin airport
Logan Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, JetBlue Airways, United
Return price
£125
Distance
4315 km
Average flight time
3 hours 34 mins

Compare flights from Boston to San Francisco easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Boston to San Francisco. Operating between them 58 flights per day, 20 airlines cover the route. And American Airlines, Qatar Airways, Condor, KLM, JAL, Icelandair, Fiji Airways, Delta Air Lines, Asiana Airlines, Virgin Australia, Air New Zealand, United Airlines, Alaska Airlines, Etihad Airways, JetBlue, Qantas, LATAM Airlines, SAS, Hawaiian Airlines, ANA, Korean Air, WestJet, TAP Air Portugal, Singapore Airlines fly direct, getting you to San Francisco Intl. in just 6hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Logan Intl. to San Francisco Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Logan Intl. (BOS) to San Francisco Intl. (SFO)

The easiest way to view the best deals on flights from Boston to San Francisco today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Logan Intl. to San Francisco Intl. start at just £125 and range up to £190.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Boston and San Francisco
  • booking your flight during November, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Boston to San Francisco flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Logan Intl. to San Francisco Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Logan Intl. Airport to San Francisco Intl. Airport (SFO)?
Based on airfares available within the last 7 days on Expedia for flights departing within the next year, round-trip flights between Logan Intl. Airport (BOS) and SFO start from £125. Book today to score the best price for your next big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from BOS to San Francisco Intl. Airport (SFO)?
Each air carrier has a different set of terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from Logan Intl. Airport (BOS) to San Francisco Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for BOS to San Francisco Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Logan Intl. Airport (BOS) to San Francisco Intl. Airport (SFO)?
The distance is around 4,300 kilometres, so fill your carry-on bag with all the items you need to make the long journey comfortable. Not sure what to take on board your Boston to San Francisco flight? Earplugs, a sleep mask and a travel pillow are a few essentials.
Which airlines fly direct from BOS to San Francisco Intl. Airport (SFO)?
Whether you're after a one-way or return flight, you'll have your pick of airlines that will take you straight from Logan Intl. Airport to SFO. These are some of the most popular ones:

  • JetBlue Airways - (B6) with 143 monthly flights
  • United Airlines - (UA) with 121 monthly flights
  • Delta Air Lines - (DL) with 56 monthly flights
  • Alaska Airlines - (AS) with 30 monthly flights

Are BOS to SFO flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up an awesome last-minute deal from BOS to SFO, but it's also possible to miss out altogether! As many airlines release prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you spot a good bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can rest assured you're always seeing the latest offers.

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