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Cheap flights from San Francisco to Boston from $200

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Boston departing on 31/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Southwest Logo
10:50 - 21:40SFO-BOS
7h 50m1 stop
Southwest Logo
10:20 - 18:35BOS-SFO
11h 15m2 stops
$323Southwest
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Wed, 3 Dec - Thu, 4 Dec
Southwest Logo
06:25 - 19:35SFO-BOS
10h 10m2 stops
Southwest Logo
05:40 - 13:50BOS-SFO
11h 10m1 stop
$326Southwest
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Sat, 15 Nov - Sat, 28 Feb
Southwest Logo
21:25 - 08:05SFO-BOS
7h 40m1 stop
Southwest Logo
06:10 - 18:15BOS-SFO
15h 05m1 stop
$328Southwest
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Sat, 13 Dec - Thu, 18 Dec
Alaska Airlines Logo
07:00 - 15:41SFO-BOS
5h 41mdirect
Alaska Airlines Logo
18:59 - 22:50BOS-SFO
6h 51mdirect
$410Alaska Airlines
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Tue, 11 Nov - Tue, 11 Nov
Alaska Airlines Logo
09:34 - 23:59SFO-BOS
11h 25m1 stop
Alaska Airlines Logo
20:25 - 00:05BOS-SFO
6h 40mdirect
$412Alaska Airlines
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Wed, 22 Oct - Fri, 24 Oct
JetBlue Logo
21:10 - 05:44SFO-BOS
5h 34mdirect
JetBlue Logo
19:55 - 23:42BOS-SFO
6h 47mdirect
$419JetBlue
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Fri, 31 Oct - Sat, 8 Nov
JetBlue Logo
15:50 - 00:30SFO-BOS
5h 40mdirect
JetBlue Logo
14:55 - 18:23BOS-SFO
6h 28mdirect
$421JetBlue
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Mon, 20 Oct - Thu, 23 Oct
Hawaiian Airlines Logo
07:00 - 15:41SFO-BOS
5h 41mdirect
Hawaiian Airlines Logo
16:24 - 23:46BOS-SFO
10h 22m1 stop
$427Hawaiian Airlines
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Mon, 27 Oct - Mon, 3 Nov
United Airlines Logo
12:55 - 00:01SFO-BOS
8h 06m1 stop
United Airlines Logo
06:00 - 09:58BOS-SFO
6h 58mdirect
$428United Airlines
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Wed, 25 Feb - Sun, 1 Mar
Hawaiian Airlines Logo
17:16 - 07:53SFO-BOS
11h 37m1 stop
Hawaiian Airlines Logo
18:59 - 22:50BOS-SFO
6h 51mdirect
$437Hawaiian Airlines
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Tue, 21 Oct - Tue, 28 Oct

Alaska Airlines flights from San Francisco to Boston

Our best Alaska Airlines deals on San Francisco to Boston flight tickets
Alaska Airlines
11 Nov
SFO07:00San Francisco
5h 41m
BOS15:41Boston Logan Intl
11 Nov
BOS18:59Boston Logan Intl
6h 51m
SFO22:50San Francisco
$410
Find similar
Alaska Airlines
22 Oct
SFO09:34San Francisco
11h 25m
1 stop
BOS23:59Boston Logan Intl
24 Oct
BOS20:25Boston Logan Intl
6h 40m
SFO00:05San Francisco
$412
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Alaska Airlines
27 Oct
SFO07:00San Francisco
5h 41m
BOS15:41Boston Logan Intl
3 Nov
BOS18:59Boston Logan Intl
6h 51m
SFO22:50San Francisco
$416
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JetBlue flights from San Francisco to Boston

Our best JetBlue deals on San Francisco to Boston flight tickets
JetBlue
31 Oct
SFO21:10San Francisco
5h 34m
BOS05:44Boston Logan Intl
8 Nov
BOS19:55Boston Logan Intl
6h 47m
SFO23:42San Francisco
$419
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JetBlue
20 Oct
SFO15:50San Francisco
5h 40m
BOS00:30Boston Logan Intl
23 Oct
BOS14:55Boston Logan Intl
6h 28m
SFO18:23San Francisco
$421
Find similar
JetBlue
31 Oct
SFO08:00San Francisco
12h 11m
1 stop
BOS23:11Boston Logan Intl
8 Nov
BOS07:00Boston Logan Intl
6h 50m
SFO10:50San Francisco
$446
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momondo 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, momondo users made 78,305 searches. Data last updated 14 September 2025.
Use the filters below to find and compare flights from San Francisco to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 3/12

10:50-21:40

1 stop7h 50m

Boston Logan Intl

Thu 4/12

10:20-18:35

2 stops11h 15m

$323

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sat 15/11

06:25-19:35

2 stops10h 10m

Boston Logan Intl

Sat 28/2

05:40-13:50

1 stop11h 10m

$326

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sat 13/12

21:25-08:05

1 stop7h 40m

Boston Logan Intl

Thu 18/12

06:10-18:15

1 stop15h 05m

$328

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 11/11

07:00-15:41

Nonstop5h 41m

Boston Logan Intl

Tue 11/11

18:59-22:50

Nonstop6h 51m

$410

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 22/10

09:34-23:59

1 stop11h 25m

Boston Logan Intl

Fri 24/10

20:25-00:05

Nonstop6h 40m

$412

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Fri 31/10

21:10-05:44

Nonstop5h 34m

Boston Logan Intl

Sat 8/11

19:55-23:42

Nonstop6h 47m

$419

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 20/10

15:50-00:30

Nonstop5h 40m

Boston Logan Intl

Thu 23/10

14:55-18:23

Nonstop6h 28m

$421

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 27/10

07:00-15:41

Nonstop5h 41m

Boston Logan Intl

Mon 3/11

16:24-23:46

1 stop10h 22m

$427

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 25/2

12:55-00:01

1 stop8h 06m

Boston Logan Intl

Sun 1/3

06:00-09:58

Nonstop6h 58m

$428

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 21/10

17:16-07:53

1 stop11h 37m

Boston Logan Intl

Tue 28/10

18:59-22:50

Nonstop6h 51m

$437

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

How to get the cheapest flight ticket from San Francisco to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San Francisco and Boston?

What is the cheapest month to fly to Boston?

In general, January is the cheapest month to fly from San Francisco to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $475. The month of February is another great option to travel to Boston, with average flight prices from San Francisco averaging around $477.

What is the cheapest day to depart on your flight to Boston?

On average, the least expensive day to fly to Boston from San Francisco is on a Monday. momondo users have found tickets for Monday departures for as low as $398. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $570. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boston.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the morning. momondo users have found flights departing from San Francisco to Boston in the morning for as low as $398. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At midday is when there is more demand to fly to Boston, so prices are often more expensive at around $570 per ticket.

What is the cheapest San Francisco to Boston Logan Intl flight route?

Fly from San Francisco to Boston Logan Intl for the best San Francisco - Boston Logan Intl flight prices

How far in advance should I book a flight to Boston?

You are more likely to see cheaper flights to Boston from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $565 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from San Francisco for as low as $507 on momondo.

What cabin class options are available on San Francisco to Boston Logan Intl flights?

There are 2 cabin classes available to choose from on San Francisco to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Francisco to Boston flight prices changed over time?

As of September 2025, prices for San Francisco to Boston flights are approximately 5% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Boston according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap San Francisco to Boston (SFO to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Boston

Fastest flight time

5h 29m

Direct flights

Every day

Airports in Boston

1 airport
The fastest flight from San Francisco to Boston takes 5h 29m
Direct flights go from San Francisco to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)
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  • How far is San Francisco to Boston Logan Intl by plane?

    Boston Logan Intl is 4329.4 km away from San Francisco. Typically, this will take 5h 34m by plane in normal conditions.

  • When did momondo last update prices for flights from San Francisco Airport to Boston Logan Intl Airport?

    Prices for flights from San Francisco Airport to Boston Logan Intl Airport were last updated today.

  • How old do you have to be to fly from San Francisco Airport to Boston Logan Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The travel and health documents required for your trip to Boston Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Boston Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Francisco to Boston?

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Westford
Old Orchard Beach
Salem
Waltham
Chelsea
Seekonk
Sturbridge

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Boston?

It is quick and easy to find San Francisco to Boston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Boston that suits you.

Can I find flights from San Francisco to Boston with flexible booking policies on momondo?

Yes. All flights to Boston from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Francisco to Boston?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Boston from San Francisco.

I’m not ready to book a flight from San Francisco to Boston right now. Can momondo alert me if prices change?

Price alerts on flights to Boston from San Francisco are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Boston trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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