Cheap Flights From Logan Intl. (BOS) To San Francisco Intl. (SFO)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

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

The cheapest flights to San Francisco Intl. found within the past 7 days were CA $261 round trip and CA $134 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Dec 4 - Wed, Dec 10
BOS
Boston
SFO
San Francisco
CA $261 Roundtrip, found 2 days ago
CA $261
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Dec 4 from Boston to San Francisco, returning Wed, Dec 10, priced at CA $261 found 2 days ago
Thu, Dec 4 - Wed, Dec 10
BOS
Boston
SFO
San Francisco
CA $266 Roundtrip, found 2 days ago
CA $266
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Dec 4 from Boston to San Francisco, returning Wed, Dec 10, priced at CA $266 found 2 days ago
Thu, Dec 4 - Wed, Dec 10
BOS
Boston
SFO
San Francisco
CA $269 Roundtrip, found 2 days ago
CA $269
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Dec 4 from Boston to San Francisco, returning Wed, Dec 10, priced at CA $269 found 2 days ago
Thu, Dec 4 - Wed, Dec 10
BOS
Boston
SFO
San Francisco
CA $273 Roundtrip, found 2 days ago
CA $273
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Dec 4 from Boston to San Francisco, returning Wed, Dec 10, priced at CA $273 found 2 days ago
Thu, Dec 4 - Wed, Dec 10
BOS
Boston
SFO
San Francisco
CA $275 Roundtrip, found 2 days ago
CA $275
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Dec 4 from Boston to San Francisco, returning Wed, Dec 10, priced at CA $275 found 2 days ago
Sat, Dec 6 - Sat, Dec 13
BOS
Boston
SFO
San Francisco
CA $280 Roundtrip, found 3 days ago
CA $280
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Sat, Dec 6 from Boston to San Francisco, returning Sat, Dec 13, priced at CA $280 found 3 days ago
Tue, Dec 9 - Tue, Dec 16
BOS
Boston
SFO
San Francisco
CA $280 Roundtrip, found 3 days ago
CA $280
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Boston to San Francisco, returning Tue, Dec 16, priced at CA $280 found 3 days ago
Sat, Dec 13 - Wed, Jan 7
BOS
Boston
SFO
San Francisco
CA $281 Roundtrip, found 1 day ago
CA $281
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Sat, Dec 13 from Boston to San Francisco, returning Wed, Jan 7, priced at CA $281 found 1 day ago
Thu, Dec 4 - Wed, Dec 10
BOS
Boston
SFO
San Francisco
CA $283 Roundtrip, found 2 days ago
CA $283
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Dec 4 from Boston to San Francisco, returning Wed, Dec 10, priced at CA $283 found 2 days ago
Thu, Dec 4 - Wed, Dec 10
BOS
Boston
SFO
San Francisco
CA $287 Roundtrip, found 2 days ago
CA $287
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Thu, Dec 4 from Boston to San Francisco, returning Wed, Dec 10, priced at CA $287 found 2 days ago

Frequently asked questions

Are there direct flights from Logan Intl. Airport (BOS) to San Francisco Intl. Airport (SFO)?
JetBlue and United Airlines are a couple of the airlines that have nonstop flights from BOS to San Francisco Airport. If you're keen to get to where you're headed fast, these are the options for you.
What airlines fly from BOS to San Francisco Intl. Airport (SFO)?
If you're searching for direct flights from Logan Intl. Airport to San Francisco Intl. Airport (SFO), you're not short on options. Here are the most popular airlines that advertise nonstop services on this route:

  • JetBlue - (B6) with 130 flights every month
  • United Airlines - (UA) with 86 flights every month
  • Delta - (DL) with 30 flights every month
  • Alaska Airlines - (AS) with 26 flights every month

What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.