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 $230 round trip and CA $118 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Sep. 6 - Sat, Sep. 6
SFO
San Francisco
BOS
Boston
CA $230 Roundtrip, found 5 days ago
CA $230
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Sep. 6 from San Francisco to Boston, returning Sat, Sep. 6, priced at CA $230 found 5 days ago
Mon, Sep. 8 - Tue, Sep. 16
SFO
San Francisco
BOS
Boston
CA $234 Roundtrip, found 5 days ago
CA $234
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Sep. 8 from San Francisco to Boston, returning Tue, Sep. 16, priced at CA $234 found 5 days ago
Mon, Sep. 15 - Fri, Sep. 19
SFO
San Francisco
BOS
Boston
CA $254 Roundtrip, found 6 days ago
CA $254
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Sep. 15 from San Francisco to Boston, returning Fri, Sep. 19, priced at CA $254 found 6 days ago
Sat, Nov. 8 - Tue, Nov. 11
SFO
San Francisco
BOS
Boston
CA $276 Roundtrip, found 5 days ago
CA $276
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Sat, Nov. 8 from San Francisco to Boston, returning Tue, Nov. 11, priced at CA $276 found 5 days ago
Mon, Sep. 8 - Tue, Sep. 16
SFO
San Francisco
BOS
Boston
CA $281 Roundtrip, found 5 days ago
CA $281
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Sep. 8 from San Francisco to Boston, returning Tue, Sep. 16, priced at CA $281 found 5 days ago
Mon, Sep. 8 - Tue, Sep. 16
SFO
San Francisco
BOS
Boston
CA $295 Roundtrip, found 5 days ago
CA $295
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Sep. 8 from San Francisco to Boston, returning Tue, Sep. 16, priced at CA $295 found 5 days ago
Mon, Sep. 8 - Tue, Sep. 16
SFO
San Francisco
BOS
Boston
CA $296 Roundtrip, found 5 days ago
CA $296
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Mon, Sep. 8 from San Francisco to Boston, returning Tue, Sep. 16, priced at CA $296 found 5 days ago
Mon, Sep. 15 - Fri, Sep. 19
SFO
San Francisco
BOS
Boston
CA $298 Roundtrip, found 6 days ago
CA $298
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Sep. 15 from San Francisco to Boston, returning Fri, Sep. 19, priced at CA $298 found 6 days ago
Mon, Sep. 8 - Tue, Sep. 16
SFO
San Francisco
BOS
Boston
CA $310 Roundtrip, found 5 days ago
CA $310
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Sep. 8 from San Francisco to Boston, returning Tue, Sep. 16, priced at CA $310 found 5 days ago
Sat, Nov. 8 - Tue, Nov. 11
SFO
San Francisco
BOS
Boston
CA $311 Roundtrip, found 5 days ago
CA $311
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Sat, Nov. 8 from San Francisco to Boston, returning Tue, Nov. 11, priced at CA $311 found 5 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.