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Cheap flights from San Francisco to Boston from $192

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOS
19 Feb — 26 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Boston

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Boston
Explore the most affordable flight options available from San Francisco to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 January 2026.

Tue 31/320:15
SFO
-
BOS
Nonstop5h 42m
JetBlue
Wed 1/407:15
BOS
-
SFO
Nonstop6h 45m
JetBlue
Deal found 18/1$315
Sun 15/215:25
SFO
-
BOS
Nonstop5h 33m
JetBlue
Tue 24/220:40
BOS
-
SFO
Nonstop6h 51m
JetBlue
Deal found 20/1$322
Fri 27/215:25
SFO
-
BOS
Nonstop5h 33m
JetBlue
Sun 1/307:00
BOS
-
SFO
Nonstop7h 00m
JetBlue
Deal found 20/1$325
Tue 10/211:05
SFO
-
BOS
Nonstop5h 46m
United Airlines
Thu 19/216:47
BOS
-
SFO
1 stop9h 30m
United Airlines
Deal found 20/1$330
Tue 17/316:10
SFO
-
BOS
Nonstop5h 39m
United Airlines
Sun 22/305:45
BOS
-
SFO
Nonstop6h 58m
United Airlines
Deal found 20/1$337
Fri 6/315:25
SFO
-
BOS
Nonstop5h 33m
JetBlue
Fri 13/320:59
BOS
-
SFO
Nonstop6h 52m
JetBlue
Deal found 20/1$343
Mon 16/215:25
SFO
-
BOS
Nonstop5h 33m
JetBlue
Sat 28/220:40
BOS
-
SFO
Nonstop6h 51m
JetBlue
Deal found 19/1$352
Wed 1/422:00
SFO
-
BOS
Nonstop5h 40m
JetBlue
Thu 2/410:30
BOS
-
SFO
Nonstop6h 30m
JetBlue
Deal found 18/1$356
Sun 15/215:25
SFO
-
BOS
Nonstop5h 33m
JetBlue
Fri 27/207:00
BOS
-
SFO
Nonstop7h 00m
JetBlue
Deal found 18/1$359
Wed 1/422:00
SFO
-
BOS
Nonstop5h 40m
JetBlue
Tue 14/420:19
BOS
-
SFO
Nonstop6h 40m
JetBlue
Deal found 20/1$364
Mon 9/319:28
SFO
-
BOS
1 stop8h 26m
Alaska Airlines
Wed 11/317:44
BOS
-
SFO
1 stop9h 15m
Alaska Airlines
Deal found 19/1$367

Find flight deals from San Francisco to Boston

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 January 2026.

Round-trip from

$315

One-way from

$192

Popular in

December

Cheapest in

February

Average price

$490

Good one-way deal

$188 or less
JetBlue
  • JetBlue
  • 31/3-1/4
  • Nonstop
  • 12h 27m total
  • San Francisco to Boston
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United Airlines
  • United Airlines
  • 7/3
  • 1 total stop
  • 8h 05m total
  • San Francisco to Boston
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Price to beat on a one-way flight from San Francisco to Boston Logan Intl.
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Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 20 January 2026.
Use the filters below to find and compare flights from San Francisco to Boston that are best for you.

Fly from

San Francisco

Fly to

Boston

Route

Depart

Return

Price

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 9/3

15:25-23:58

Nonstop5h 33m

Boston Logan Intl

Wed 11/3

20:40-00:31

Nonstop6h 51m

$322

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Fri 27/2

16:10-00:49

Nonstop5h 39m

Boston Logan Intl

Sun 1/3

06:00-09:58

Nonstop6h 58m

$322

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 16/3

20:44-05:15

Nonstop5h 31m

Boston Logan Intl

Thu 19/3

20:59-00:51

Nonstop6h 52m

$337

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 19/2

08:00-16:40

Nonstop5h 40m

Boston Logan Intl

Sat 21/2

20:33-00:25

Nonstop6h 52m

$352

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 23/3

15:50-00:21

Nonstop5h 31m

Boston Logan Intl

Mon 30/3

07:00-11:00

Nonstop7h 00m

$352

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 1/4

21:16-06:21

Nonstop6h 05m

Boston Logan Intl

Sat 18/4

20:16-23:59

Nonstop6h 43m

$364

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 1/4

09:00-17:45

Nonstop5h 45m

Boston Logan Intl

Mon 6/4

21:15-00:56

Nonstop6h 41m

$364

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 19/2

11:15-19:56

Nonstop5h 41m

Boston Logan Intl

Sun 22/2

06:00-09:58

Nonstop6h 58m

$371

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 10/3

15:25-23:58

Nonstop5h 33m

Boston Logan Intl

Wed 11/3

10:10-16:53

1 stop9h 43m

$379

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 19/2

08:00-16:40

Nonstop5h 40m

Boston Logan Intl

Sun 22/2

07:15-11:15

Nonstop7h 00m

$382

Flights are sorted by cheapest return flights first.

Deals found on 18/1

Showing 1-10 of 22 results
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Best time to book a flight from San Francisco to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from San Francisco with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Boston

How far ahead should I book a flight from San Francisco to Boston?

Use this chart to determine the optimal time to book a return flight from San Francisco to Boston. Price data was last updated on 16 January 2026.

The best time to book flights from San Francisco to Boston is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to Boston?

Currently, December is the cheapest month in which you can book a flight from San Francisco to Boston (average of $175). Flying from San Francisco to Boston in June is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to BOS?

Find hourly flight availability from San Francisco to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 January 2026.

When flying from San Francisco to Boston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this San Francisco to Boston flight route?

    The San Francisco to Boston Logan Intl flight path was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Francisco to Boston?

    Airlines like JetBlue and United Airlines fly from San Francisco to Boston in about 5h 33m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 4339 km. Most flights are nonstop.

  • What are the most reliable airlines from San Francisco to Boston?

    No one likes to see their flight delayed. When booking a flight from San Francisco to Boston consider choosing EL AL(96%), Scandinavian Airlines(94%) or Qatar Airways(93%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from San Francisco to Boston?

    The cheapest flight price from San Francisco to Boston is $185. On average you can expect to pay $225. The most popular route, (San Francisco - Boston Logan Intl), can usually be booked for $998.

  • Can I find deals for flights from San Francisco to Boston that include hotel bookings?

    Yes. In addition to deals on San Francisco to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Boston.

  • Can I find deals for business class flights from San Francisco to Boston?

    Yes. Cheapflights offers flight deals from San Francisco to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Boston?

    Currently, December is the cheapest month in which you can book a flight from San Francisco to Boston (average of $175). Flying from San Francisco to Boston in June is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Revere
Cambridge

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Boston flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Francisco to Boston?

When you search for this flight from San Francisco to Boston, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Boston?

Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to Boston for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from San Francisco to Boston with no change fees?

Certainly. Search results for flights to Boston from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from San Francisco to Boston become cheaper?

Yes, Cheapflights offers price alerts on San Francisco to Boston flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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