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 $320 round trip and CA $159 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Mar 3 - Tue, Mar 10
SFO
San Francisco
BOS
Boston
CA $320 Roundtrip, found 3 days ago
CA $320
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Mar 3 from San Francisco to Boston, returning Tue, Mar 10, priced at CA $320 found 3 days ago
Tue, Mar 3 - Tue, Mar 10
SFO
San Francisco
BOS
Boston
CA $321 Roundtrip, found 3 days ago
CA $321
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Mar 3 from San Francisco to Boston, returning Tue, Mar 10, priced at CA $321 found 3 days ago
Tue, Mar 3 - Tue, Mar 10
SFO
San Francisco
BOS
Boston
CA $322 Roundtrip, found 3 days ago
CA $322
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Mar 3 from San Francisco to Boston, returning Tue, Mar 10, priced at CA $322 found 3 days ago
Tue, Apr 21 - Sat, Apr 25
SFO
San Francisco
BOS
Boston
CA $325 Roundtrip, found 5 days ago
CA $325
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Tue, Apr 21 from San Francisco to Boston, returning Sat, Apr 25, priced at CA $325 found 5 days ago
Tue, Feb 24 - Wed, Mar 4
SFO
San Francisco
BOS
Boston
CA $326 Roundtrip, found 3 days ago
CA $326
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Feb 24 from San Francisco to Boston, returning Wed, Mar 4, priced at CA $326 found 3 days ago
Tue, Apr 21 - Sat, Apr 25
SFO
San Francisco
BOS
Boston
CA $327 Roundtrip, found 5 days ago
CA $327
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Tue, Apr 21 from San Francisco to Boston, returning Sat, Apr 25, priced at CA $327 found 5 days ago
Tue, Feb 24 - Wed, Mar 4
SFO
San Francisco
BOS
Boston
CA $340 Roundtrip, found 3 days ago
CA $340
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Feb 24 from San Francisco to Boston, returning Wed, Mar 4, priced at CA $340 found 3 days ago
Thu, May 7 - Wed, May 13
SFO
San Francisco
BOS
Boston
CA $346 Roundtrip, found 5 days ago
CA $346
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Thu, May 7 from San Francisco to Boston, returning Wed, May 13, priced at CA $346 found 5 days ago
Tue, Mar 3 - Tue, Mar 10
SFO
San Francisco
BOS
Boston
CA $356 Roundtrip, found 3 days ago
CA $356
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Mar 3 from San Francisco to Boston, returning Tue, Mar 10, priced at CA $356 found 3 days ago
Tue, Mar 3 - Tue, Mar 10
SFO
San Francisco
BOS
Boston
CA $357 Roundtrip, found 3 days ago
CA $357
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Mar 3 from San Francisco to Boston, returning Tue, Mar 10, priced at CA $357 found 3 days 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.