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

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

The cheapest flights to San Francisco Intl. found within the past 7 days were CA $408 round trip and CA $201 one way. Prices and availability subject to change. Additional terms may apply.

Thu, May 28 - Tue, Jun 2
BOS
Boston
SFO
San Francisco
CA $408 Roundtrip, found 23 hours ago
CA $408
Roundtrip
found 23 hours ago
Select JetBlue Airways flight, departing Thu, May 28 from Boston to San Francisco, returning Tue, Jun 2, priced at CA $408 found 23 hours ago
Thu, May 28 - Tue, Jun 2
BOS
Boston
SFO
San Francisco
CA $416 Roundtrip, found 23 hours ago
CA $416
Roundtrip
found 23 hours ago
Select JetBlue Airways flight, departing Thu, May 28 from Boston to San Francisco, returning Tue, Jun 2, priced at CA $416 found 23 hours ago
Sat, Sep 5 - Tue, Sep 8
BOS
Boston
SFO
San Francisco
CA $422 Roundtrip, found 2 days ago
CA $422
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Sep 5 from Boston to San Francisco, returning Tue, Sep 8, priced at CA $422 found 2 days ago
Tue, Sep 8 - Tue, Sep 8
BOS
Boston
SFO
San Francisco
CA $422 Roundtrip, found 2 days ago
CA $422
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, Sep 8 from Boston to San Francisco, returning Tue, Sep 8, priced at CA $422 found 2 days ago
Thu, May 28 - Mon, Jun 1
BOS
Boston
SFO
San Francisco
CA $429 Roundtrip, found 5 hours ago
CA $429
Roundtrip
found 5 hours ago
Select JetBlue Airways flight, departing Thu, May 28 from Boston to San Francisco, returning Mon, Jun 1, priced at CA $429 found 5 hours ago
Tue, Sep 8 - Wed, Sep 23
BOS
Boston
SFO
San Francisco
CA $432 Roundtrip, found 2 days ago
CA $432
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Sep 8 from Boston to San Francisco, returning Wed, Sep 23, priced at CA $432 found 2 days ago
Thu, May 28 - Mon, Jun 1
BOS
Boston
SFO
San Francisco
CA $436 Roundtrip, found 5 hours ago
CA $436
Roundtrip
found 5 hours ago
Select JetBlue Airways flight, departing Thu, May 28 from Boston to San Francisco, returning Mon, Jun 1, priced at CA $436 found 5 hours ago
Thu, May 28 - Mon, Jun 1
BOS
Boston
SFO
San Francisco
CA $436 Roundtrip, found 5 hours ago
CA $436
Roundtrip
found 5 hours ago
Select JetBlue Airways flight, departing Thu, May 28 from Boston to San Francisco, returning Mon, Jun 1, priced at CA $436 found 5 hours ago
Thu, Apr 30 - Wed, May 6
BOS
Boston
SFO
San Francisco
CA $439 Roundtrip, found 6 days ago
CA $439
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Thu, Apr 30 from Boston to San Francisco, returning Wed, May 6, priced at CA $439 found 6 days ago
Thu, Apr 30 - Wed, May 6
BOS
Boston
SFO
San Francisco
CA $441 Roundtrip, found 6 days ago
CA $441
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Thu, Apr 30 from Boston to San Francisco, returning Wed, May 6, priced at CA $441 found 6 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.

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*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.