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Cheap flights from Boston to San Francisco from $182

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Francisco departing on 24/3. 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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Find the cheapest flights from Boston to San Francisco

Cheap return flights

These are some of the best return flight deals from Boston to San Francisco that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Boston to San Francisco.

Cheap last-minute flights

Planning a quick getaway from Boston to San Francisco? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Francisco, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Boston to San Francisco

Find recent return train or bus tickets from Boston to San Francisco.

All return flight deals from Boston to San Francisco

The cheapest plane tickets from Boston to San Francisco found on KAYAK recently.
20:10 - 23:55BOS-SFO
6h 45mdirect
15:05 - 23:37SFO-BOS
5h 32mdirect
$363JetBlue
Find Deal
Thu, 20 Feb - Thu, 27 Feb
06:00 - 09:39BOS-SFO
6h 39mdirect
15:00 - 23:47SFO-BOS
5h 47mdirect
$365JetBlue
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Thu, 3 Apr - Mon, 14 Apr
20:00 - 23:59BOS-SFO
6h 59mdirect
22:20 - 07:14SFO-BOS
5h 54mdirect
$366Delta
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Mon, 28 Apr - Mon, 5 May
05:01 - 12:16BOS-SFO
10h 15m1 stop
15:00 - 23:32SFO-BOS
5h 32mdirect
$370JetBlue
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Wed, 19 Feb - Wed, 19 Feb
08:00 - 11:53BOS-SFO
6h 53mdirect
19:30 - 07:20SFO-BOS
8h 50m1 stop
$373United Airlines
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Wed, 12 Feb - Sun, 16 Feb
16:23 - 08:00BOS-SFO
18h 37m1 stop
11:35 - 23:59SFO-BOS
9h 24m1 stop
$390Alaska Airlines
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Mon, 24 Feb - Thu, 27 Feb
17:24 - 10:00BOS-SFO
19h 36m1 stop
09:00 - 15:23SFO-BOS
27h 23m1 stop
$394Alaska Airlines
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Tue, 11 Feb - Tue, 18 Feb
07:50 - 11:50BOS-SFO
7h 00mdirect
13:00 - 21:33SFO-BOS
5h 33mdirect
$397Delta
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Sun, 23 Mar - Wed, 26 Mar
18:00 - 21:50BOS-SFO
6h 50mdirect
13:00 - 21:43SFO-BOS
5h 43mdirect
$411United Airlines
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Tue, 4 Feb - Fri, 7 Feb
14:31 - 20:50BOS-SFO
9h 19m1 stop
00:25 - 11:02SFO-BOS
7h 37m1 stop
$438American Airlines
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Mon, 17 Mar - Tue, 18 Mar
07:50 - 11:50BOS-SFO
7h 00mdirect
$182Delta
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Mon, 24 Mar
20:00 - 23:59BOS-SFO
6h 59mdirect
$184Delta
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Fri, 30 May
16:41 - 22:51BOS-SFO
9h 10m1 stop
$190United Airlines
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Tue, 25 Mar
16:23 - 23:45BOS-SFO
10h 22m1 stop
$197Alaska Airlines
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Thu, 13 Mar
05:01 - 12:16BOS-SFO
10h 15m1 stop
$198JetBlue
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Thu, 20 Feb
16:12 - 22:10BOS-SFO
8h 58m1 stop
$200JetBlue
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Tue, 15 Apr
06:00 - 09:40BOS-SFO
6h 40mdirect
$216United Airlines
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Sun, 30 Mar
06:20 - 12:38BOS-SFO
9h 18m1 stop
$227Alaska Airlines
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Sun, 25 May
16:00 - 21:30BOS-SFO
8h 30m1 stop
$229Southwest
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Fri, 28 Mar
22:30 - 11:50BOS-SFO
16h 20m2 stops
$238Southwest
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Thu, 27 Feb
06:00 - 09:55BOS-SFO
6h 55mdirect
20:42 - 05:10SFO-BOS
5h 28mdirect
$606JetBlue
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Wed, 22 Jan - Sat, 15 Feb
06:35 - 14:10BOS-SFO
10h 35m1 stop
20:42 - 05:10SFO-BOS
5h 28mdirect
$622JetBlue
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Wed, 22 Jan - Sat, 15 Feb
07:00 - 15:35BOS-SFO
11h 35m1 stop
06:00 - 16:55SFO-BOS
7h 55m1 stop
$637Alaska Airlines
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Thu, 23 Jan - Wed, 12 Feb
17:50 - 21:56BOS-SFO
7h 06mdirect
07:30 - 16:10SFO-BOS
5h 40mdirect
$678Delta
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Sat, 25 Jan - Sat, 15 Feb
07:00 - 13:47BOS-SFO
9h 47m1 stop
08:10 - 16:55SFO-BOS
29h 45m2 stops
$683Alaska Airlines
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Sun, 26 Jan - Fri, 31 Jan
17:50 - 21:56BOS-SFO
7h 06mdirect
13:15 - 21:54SFO-BOS
5h 39mdirect
$750Delta
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Sat, 25 Jan - Fri, 14 Feb
13:25 - 21:25BOS-SFO
11h 00m2 stops
07:15 - 22:00SFO-BOS
11h 45m2 stops
$898Southwest
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Thu, 23 Jan - Sat, 25 Jan
06:31 - 12:10BOS-SFO
8h 39m1 stop
16:27 - 05:49SFO-BOS
10h 22m2 stops
$926United Airlines
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Fri, 24 Jan - Fri, 14 Feb
18:00 - 21:50BOS-SFO
6h 50mdirect
13:00 - 21:43SFO-BOS
5h 43mdirect
$934United Airlines
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Wed, 22 Jan - Wed, 29 Jan
13:25 - 22:35BOS-SFO
12h 10m2 stops
05:00 - 19:00SFO-BOS
11h 00m2 stops
$1,349Southwest
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Fri, 24 Jan - Fri, 14 Feb
20:10 - 23:55BOS-SFO
6h 45mdirect
15:05 - 23:37SFO-BOS
5h 32mdirect
$363JetBlue
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Thu, 20 Feb - Thu, 27 Feb
06:00 - 09:39BOS-SFO
6h 39mdirect
15:00 - 23:47SFO-BOS
5h 47mdirect
$365JetBlue
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Thu, 3 Apr - Mon, 14 Apr
20:00 - 23:59BOS-SFO
6h 59mdirect
07:00 - 15:51SFO-BOS
5h 51mdirect
$366Delta
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Mon, 28 Apr - Sat, 24 May
07:50 - 11:59BOS-SFO
7h 09mdirect
13:15 - 21:54SFO-BOS
5h 39mdirect
$387Delta
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Mon, 10 Feb - Tue, 25 Feb
06:00 - 09:55BOS-SFO
6h 55mdirect
20:42 - 05:10SFO-BOS
5h 28mdirect
$389JetBlue
Find Deal
Mon, 10 Feb - Sun, 16 Feb
10:05 - 13:54BOS-SFO
6h 49mdirect
15:00 - 23:47SFO-BOS
5h 47mdirect
$394JetBlue
Find Deal
Wed, 5 Mar - Mon, 14 Apr
08:00 - 11:55BOS-SFO
6h 55mdirect
23:25 - 08:02SFO-BOS
5h 37mdirect
$405United Airlines
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Fri, 14 Mar - Mon, 17 Mar
18:00 - 21:50BOS-SFO
6h 50mdirect
13:00 - 21:43SFO-BOS
5h 43mdirect
$411United Airlines
Find Deal
Tue, 4 Feb - Fri, 7 Feb
19:59 - 23:57BOS-SFO
6h 58mdirect
07:44 - 16:27SFO-BOS
5h 43mdirect
$472Alaska Airlines
Find Deal
Thu, 3 Apr - Wed, 9 Apr
18:20 - 22:12BOS-SFO
6h 52mdirect
22:45 - 07:26SFO-BOS
5h 41mdirect
$538Alaska Airlines
Find Deal
Wed, 9 Jul - Sun, 3 Aug

Alaska Airlines flights from Boston to San Francisco

Our best Alaska Airlines deals on Boston to San Francisco flight tickets
Alaska Airlines
24 Feb
BOS16:23Boston Logan Intl
18h 37m
1 stop
SFO08:00San Francisco
27 Feb
SFO11:35San Francisco
9h 24m
1 stop
BOS23:59Boston Logan Intl
Alaska Airlines
11 Feb
BOS17:24Boston Logan Intl
19h 36m
1 stop
SFO10:00San Francisco
18 Feb
SFO09:00San Francisco
27h 23m
1 stop
BOS15:23Boston Logan Intl
Alaska Airlines
10 Feb
BOS16:30Boston Logan Intl
10h 08m
1 stop
SFO23:38San Francisco
11 Feb
SFO15:57San Francisco
21h 58m
1 stop
BOS16:55Boston Logan Intl

United Airlines flights from Boston to San Francisco

Our best United Airlines deals on Boston to San Francisco flight tickets
United Airlines
12 Feb
BOS08:00Boston Logan Intl
6h 53m
SFO11:53San Francisco
16 Feb
SFO19:30San Francisco
8h 50m
1 stop
BOS07:20Boston Logan Intl
United Airlines
5 Feb
BOS09:25Boston Logan Intl
8h 52m
1 stop
SFO15:17San Francisco
12 Feb
SFO23:10San Francisco
5h 43m
BOS07:53Boston Logan Intl
United Airlines
4 Feb
BOS18:00Boston Logan Intl
6h 50m
SFO21:50San Francisco
7 Feb
SFO13:00San Francisco
5h 43m
BOS21:43Boston Logan Intl

See travel insights to San Francisco from

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

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 cheapest month to fly to San Francisco?

If you aren’t able to travel during the month of September, then book flights to San Francisco from Boston during February instead. Flights to San Francisco in February, while not as cheap as those in September, still average around $493.

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

According to our data, the cheapest time of day to fly to San Francisco is in the evening. momondo users have found flights departing from Boston to San Francisco in the evening for as low as $0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $2,327 on average. Flights to San Francisco from Boston in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

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

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Boston when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $574 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Boston for as low as $526 on momondo.

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

There are 3 cabin classes available to choose from on Boston Logan Intl to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of January 2025, prices for Boston to San Francisco flights are approximately 21% more expensive when compared to flights at the same time last year.

When to book flights from Boston to San Francisco

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

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

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

Best price found

$182

Fastest flight time

6h 28m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Boston in the past 72 hours is $182. The best return flight deal from Boston to San Francisco found on momondo in the last 72 hours is $363.
The fastest flight from Boston to San Francisco takes 6h 28m
Direct flights go from Boston to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)

  • How far is Boston Logan Intl to San Francisco by plane?

    San Francisco is 4329.4 km away from Boston Logan Intl. A reasonable flight in good conditions will take 6h 36m.

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

    Prices for flights from Boston Logan Intl Airport to San Francisco Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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


Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Walnut Creek
Carmel-by-the-Sea
Watsonville
San Mateo
Pacifica
Sausalito
Mountain View
Santa Cruz
Salinas
Pebble Beach
Union City
Fremont
San Lorenzo
Brentwood

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to San Francisco . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Boston to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Boston to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Boston to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.


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