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

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

The cheapest flights to Logan Intl. found within the past 7 days were CA $333 round trip and CA $169 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Jan 10 - Sat, Jan 17
SFO
San Francisco
BOS
Boston
CA $333 Roundtrip, found 3 days ago
CA $333
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Sat, Jan 10 from San Francisco to Boston, returning Sat, Jan 17, priced at CA $333 found 3 days ago
Sat, Jan 10 - Sat, Jan 17
SFO
San Francisco
BOS
Boston
CA $336 Roundtrip, found 3 days ago
CA $336
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Sat, Jan 10 from San Francisco to Boston, returning Sat, Jan 17, priced at CA $336 found 3 days ago
Thu, Jan 1 - Tue, Jan 6
SFO
San Francisco
BOS
Boston
CA $350 Roundtrip, found 3 days ago
CA $350
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Jan 1 from San Francisco to Boston, returning Tue, Jan 6, priced at CA $350 found 3 days ago
Thu, Jan 1 - Wed, Jan 7
SFO
San Francisco
BOS
Boston
CA $356 Roundtrip, found 3 days ago
CA $356
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Jan 1 from San Francisco to Boston, returning Wed, Jan 7, priced at CA $356 found 3 days ago
Sat, Jan 10 - Sat, Jan 17
SFO
San Francisco
BOS
Boston
CA $372 Roundtrip, found 3 days ago
CA $372
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Sat, Jan 10 from San Francisco to Boston, returning Sat, Jan 17, priced at CA $372 found 3 days ago
Sat, Jan 17 - Mon, Feb 2
SFO
San Francisco
BOS
Boston
CA $373 Roundtrip, found 2 days ago
CA $373
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Sat, Jan 17 from San Francisco to Boston, returning Mon, Feb 2, priced at CA $373 found 2 days ago
Fri, Sep 4 - Sat, Sep 19
SFO
San Francisco
BOS
Boston
CA $384 Roundtrip, found 1 day ago
CA $384
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Fri, Sep 4 from San Francisco to Boston, returning Sat, Sep 19, priced at CA $384 found 1 day ago
Sat, Jan 17 - Mon, Feb 2
SFO
San Francisco
BOS
Boston
CA $387 Roundtrip, found 2 days ago
CA $387
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Sat, Jan 17 from San Francisco to Boston, returning Mon, Feb 2, priced at CA $387 found 2 days ago
Sat, Jan 10 - Sat, Jan 17
SFO
San Francisco
BOS
Boston
CA $388 Roundtrip, found 3 days ago
CA $388
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Sat, Jan 10 from San Francisco to Boston, returning Sat, Jan 17, priced at CA $388 found 3 days ago
Wed, Apr 22 - Sat, Apr 25
SFO
San Francisco
BOS
Boston
CA $395 Roundtrip, found 1 day ago
CA $395
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Wed, Apr 22 from San Francisco to Boston, returning Sat, Apr 25, priced at CA $395 found 1 day ago

Frequently asked questions

Are there direct flights from San Francisco Airport to Logan Intl. Airport?
JetBlue and United Airlines are some of the airlines that advertise nonstop flights from San Francisco Airport to BOS. If you're keen to get to where you're headed without a stopover, these are your best options.
What airlines fly from San Francisco Airport to Logan Intl. Airport (BOS)?
If you're planning to travel from San Francisco to Boston, there are a good number of airlines that will fly you there. Take your pick from these airlines that fly direct from SFO to BOS:

  • 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.