S$128 Cheap Flights from San Francisco to Boston

View S$128 flight on Wed, 21 Jan, 2026Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Boston

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Cheap Flights from San Francisco to Boston (SFO-BOS)

Prices were available within the past 7 days and start at S$128 for one-way flights and S$255 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 7 Jan - Tue, 13 Jan
SFO
San Francisco
BOS
Boston
S$255 Return, found 5 days ago
S$255
Return
found 5 days ago
Select Delta flight, departing Wed, 7 Jan from San Francisco to Boston, returning Tue, 13 Jan, priced at S$255 found 5 days ago
Delta
Thu, 8 Jan - Wed, 14 Jan
SFO
San Francisco
BOS
Boston
S$281 Return, found 4 days ago
S$281
Return
found 4 days ago
Select Delta flight, departing Thu, 8 Jan from San Francisco to Boston, returning Wed, 14 Jan, priced at S$281 found 4 days ago
Delta
Sun, 11 Jan - Tue, 20 Jan
SFO
San Francisco
BOS
Boston
S$281 Return, found 3 days ago
S$281
Return
found 3 days ago
Select Delta flight, departing Sun, 11 Jan from San Francisco to Boston, returning Tue, 20 Jan, priced at S$281 found 3 days ago
Delta
Fri, 9 Jan - Thu, 15 Jan
SFO
San Francisco
BOS
Boston
S$307 Return, found 5 days ago
S$307
Return
found 5 days ago
Select Delta flight, departing Fri, 9 Jan from San Francisco to Boston, returning Thu, 15 Jan, priced at S$307 found 5 days ago
Delta
Sat, 10 Jan - Tue, 13 Jan
SFO
San Francisco
BOS
Boston
S$320 Return, found 5 days ago
S$320
Return
found 5 days ago
Select Delta flight, departing Sat, 10 Jan from San Francisco to Boston, returning Tue, 13 Jan, priced at S$320 found 5 days ago
Delta
Sun, 11 Jan - Tue, 20 Jan
SFO
San Francisco
BOS
Boston
S$320 Return, found 3 days ago
S$320
Return
found 3 days ago
Select Delta flight, departing Sun, 11 Jan from San Francisco to Boston, returning Tue, 20 Jan, priced at S$320 found 3 days ago
United
Thu, 8 Jan - Wed, 14 Jan
SFO
San Francisco
BOS
Boston
S$345 Return, found 4 days ago
S$345
Return
found 4 days ago
Select United flight, departing Thu, 8 Jan from San Francisco to Boston, returning Wed, 14 Jan, priced at S$345 found 4 days ago
American Airlines
Thu, 8 Jan - Wed, 14 Jan
SFO
San Francisco
BOS
Boston
S$364 Return, found 4 days ago
S$364
Return
found 4 days ago
Select American Airlines flight, departing Thu, 8 Jan from San Francisco to Boston, returning Wed, 14 Jan, priced at S$364 found 4 days ago
Alaska Airlines
Tue, 6 Jan - Tue, 13 Jan
SFO
San Francisco
BOS
Boston
S$371 Return, found 5 days ago
S$371
Return
found 5 days ago
Select Alaska Airlines flight, departing Tue, 6 Jan from San Francisco to Boston, returning Tue, 13 Jan, priced at S$371 found 5 days ago
JetBlue Airways
Wed, 7 Jan - Mon, 12 Jan
SFO
San Francisco
BOS
Boston
S$397 Return, found 5 days ago
S$397
Return
found 5 days ago
Select JetBlue Airways flight, departing Wed, 7 Jan from San Francisco to Boston, returning Mon, 12 Jan, priced at S$397 found 5 days ago

Find the cheapest month to fly from San Francisco (SFO) to Boston (BOS)

May is typically the cheapest month to fly

From S$207 - S$375 per traveller.

Alternative airports near Boston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Logan Intl. BOS. Cheapest and Closest option available. Average driving time to city centre is 7 minutes. Flights from S$371
BOS
Logan Intl.
CheapestClosest
Average driving time to city centre7 min
Flights from S$371

Frequently asked questions

How much is a flight from San Francisco Intl. Airport (SFO) to Logan Intl. Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight from SFO to BOS was S$255. Fares this cheap don't wait forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Francisco Airport to BOS?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from San Francisco Intl. Airport (SFO) to Logan Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SFO to Logan Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from San Francisco Airport to BOS?
With around 4,300 kilometres separating San Francisco Airport and Logan Intl. Airport (BOS), your flight will be a long one. Pack wisely and make your trip more comfortable. Simple things like warm clothing and a quality neck pillow can make a massive difference.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to Logan Intl. Airport?
Have a look at the deals on offer with these top carriers and book your ticket from San Francisco Airport to Logan Intl. Airport (BOS) today:

  • JetBlue Airways - (B6) with 143 monthly flights
  • United Airlines - (UA) with 121 monthly flights
  • Delta Air Lines - (DL) with 56 monthly flights
  • Alaska Airlines - (AS) with 30 monthly flights

Are San Francisco Intl. Airport (SFO) to BOS flight tickets cheaper when they're purchased at the last minute?
Booking your trip from San Francisco Airport to BOS last minute could be your ticket to a cheap deal. However, it could end up costing you a whole lot more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Logan Intl.
Airlines serving
American Airlines, Delta, JetBlue Airways, United
Return price
S$255
Distance
4315 km
Average flight time
8 hours 39 mins

Book with confidence

Flights from San Francisco to Boston

There are several airlines that operate frequent flights from San Francisco (SFO) to Boston (BOS) including

The earliest flight leaves San Francisco Intl. Airport at 00:30 and arrives at Logan Intl. Airport at 00:27. The last flight of the day departs San Francisco at 22:45 and arrives at Boston at 23:57.

The flight distance from San Francisco to Boston is about 4364 km, the shortest flight is 05 hours 22 minutes with .

Expedia lets you search across the largest number of airlines and Boston flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your San Francisco Boston flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your San Francisco to Boston trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Boston flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from San Francisco to Boston with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Flights from San Francisco to Boston

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