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Cheap flights from Boston to San Francisco from $64

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 2/10. 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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Find the cheapest flights from Boston to San Francisco

Cheap round-trip flights

These are some of the best round-trip 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 layovers.

Cheap bus & train deals from Boston to San Francisco

Find recent round-trip train or bus tickets from Boston to San Francisco.

All round-trip flight deals from Boston to San Francisco

The cheapest plane tickets from Boston to San Francisco found on KAYAK recently.
11:34 am - 9:30 pmBOS-SFO
12h 56m1 stop
10:17 pm - 10:44 amSFO-BOS
9h 27m1 stop
$130Frontier
Find Deal
Thu, Apr 3 - Wed, Apr 9
6:00 am - 9:30 pmBOS-SFO
18h 30m1 stop
10:30 pm - 12:47 amSFO-BOS
23h 17m1 stop
$139Frontier
Find Deal
Thu, Apr 3 - Tue, Apr 8
6:00 am - 9:55 amBOS-SFO
6h 55mnonstop
8:30 am - 5:03 pmSFO-BOS
5h 33mnonstop
$225JetBlue
Find Deal
Thu, Feb 27 - Thu, Mar 6
7:00 am - 10:50 amBOS-SFO
6h 50mnonstop
11:20 pm - 7:50 amSFO-BOS
5h 30mnonstop
$227JetBlue
Find Deal
Thu, Feb 20 - Tue, Feb 25
4:30 pm - 8:29 pmBOS-SFO
6h 59mnonstop
1:00 pm - 9:53 pmSFO-BOS
5h 53mnonstop
$229Delta
Find Deal
Wed, Apr 30 - Tue, May 6
8:00 am - 11:53 amBOS-SFO
6h 53mnonstop
7:30 pm - 7:20 amSFO-BOS
8h 50m1 stop
$233United Airlines
Find Deal
Wed, Feb 12 - Mon, Feb 17
4:30 pm - 11:38 pmBOS-SFO
10h 08m1 stop
7:30 am - 4:10 pmSFO-BOS
5h 40mnonstop
$240Alaska Airlines
Find Deal
Mon, Feb 10 - Sun, Feb 16
8:00 am - 11:53 amBOS-SFO
6h 53mnonstop
11:10 pm - 7:53 amSFO-BOS
5h 43mnonstop
$242United Airlines
Find Deal
Wed, Feb 5 - Wed, Feb 12
4:30 pm - 3:17 pmBOS-SFO
25h 47m1 stop
6:00 am - 11:59 pmSFO-BOS
14h 59m1 stop
$244Alaska Airlines
Find Deal
Mon, Feb 10 - Sun, Feb 16
5:50 pm - 9:56 pmBOS-SFO
7h 06mnonstop
11:15 pm - 1:44 pmSFO-BOS
11h 29m1 stop
$274Delta
Find Deal
Sat, Feb 22 - Mon, Feb 24
12:56 pm - 7:50 pmBOS-SFO
9h 54m1 stop
$64Frontier
Find Deal
Mon, Feb 10
12:56 pm - 7:50 pmBOS-SFO
9h 54m1 stop
$66Frontier
Find Deal
Mon, Feb 10
6:11 pm - 9:59 pmBOS-SFO
6h 48mnonstop
$113JetBlue
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Thu, Mar 27
6:00 am - 9:55 amBOS-SFO
6h 55mnonstop
$114JetBlue
Find Deal
Mon, Feb 10
8:00 pm - 11:59 pmBOS-SFO
6h 59mnonstop
$115Delta
Find Deal
Wed, Apr 30
4:41 pm - 10:51 pmBOS-SFO
9h 10m1 stop
$119United Airlines
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Tue, Mar 25
7:00 am - 3:43 pmBOS-SFO
11h 43m1 stop
$123Alaska Airlines
Find Deal
Wed, Feb 26
5:50 pm - 9:56 pmBOS-SFO
7h 06mnonstop
$127Delta
Find Deal
Tue, Feb 18
4:30 pm - 11:38 pmBOS-SFO
10h 08m1 stop
$138Alaska Airlines
Find Deal
Mon, Feb 3
6:00 am - 9:50 amBOS-SFO
6h 50mnonstop
$155United Airlines
Find Deal
Sun, Jun 29
5:50 pm - 9:56 pmBOS-SFO
7h 06mnonstop
1:15 pm - 9:54 pmSFO-BOS
5h 39mnonstop
$394Delta
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Fri, Jan 24 - Fri, Feb 14
5:20 am - 1:35 pmBOS-SFO
11h 15m1 stop
11:35 pm - 11:00 amSFO-BOS
8h 25m1 stop
$399American Airlines
Find Deal
Fri, Jan 24 - Fri, Feb 14
11:28 am - 8:49 pmBOS-SFO
12h 21m1 stop
11:10 pm - 7:47 amSFO-BOS
5h 37mnonstop
$404JetBlue
Find Deal
Sat, Jan 25 - Mon, Feb 3
7:00 am - 1:47 pmBOS-SFO
9h 47m1 stop
8:10 am - 4:55 pmSFO-BOS
29h 45m2 stops
$427Alaska Airlines
Find Deal
Sun, Jan 26 - Fri, Jan 31
6:59 pm - 8:56 amBOS-SFO
16h 57m1 stop
7:40 am - 11:59 pmSFO-BOS
13h 19m2 stops
$449Alaska Airlines
Find Deal
Sun, Jan 26 - Sat, Feb 1
6:00 am - 9:28 pmBOS-SFO
18h 28m1 stop
7:00 pm - 7:26 amSFO-BOS
9h 26m1 stop
$462Frontier
Find Deal
Sat, Jan 25 - Thu, Jan 30
6:00 am - 9:28 pmBOS-SFO
18h 28m1 stop
1:47 pm - 7:26 amSFO-BOS
14h 39m1 stop
$463Frontier
Find Deal
Sat, Jan 25 - Thu, Jan 30
6:00 am - 9:55 amBOS-SFO
6h 55mnonstop
1:30 pm - 10:04 pmSFO-BOS
5h 34mnonstop
$476JetBlue
Find Deal
Sun, Jan 26 - Sat, Feb 1
4:55 pm - 10:56 pmBOS-SFO
9h 01m1 stop
2:55 pm - 5:49 amSFO-BOS
11h 54m2 stops
$564United Airlines
Find Deal
Fri, Jan 24 - Fri, Feb 14
6:00 pm - 9:50 pmBOS-SFO
6h 50mnonstop
1:00 pm - 9:43 pmSFO-BOS
5h 43mnonstop
$584United Airlines
Find Deal
Wed, Jan 22 - Wed, Jan 29
6:00 am - 9:55 amBOS-SFO
6h 55mnonstop
8:30 am - 5:03 pmSFO-BOS
5h 33mnonstop
$225JetBlue
Find Deal
Thu, Feb 27 - Thu, Mar 6
7:00 am - 10:50 amBOS-SFO
6h 50mnonstop
11:20 pm - 7:50 amSFO-BOS
5h 30mnonstop
$227JetBlue
Find Deal
Thu, Feb 20 - Tue, Feb 25
6:00 am - 9:39 amBOS-SFO
6h 39mnonstop
3:00 pm - 11:47 pmSFO-BOS
5h 47mnonstop
$228JetBlue
Find Deal
Thu, Apr 3 - Mon, Apr 14
4:30 pm - 8:29 pmBOS-SFO
6h 59mnonstop
7:00 am - 3:51 pmSFO-BOS
5h 51mnonstop
$229Delta
Find Deal
Wed, Apr 30 - Sat, May 24
8:00 am - 11:53 amBOS-SFO
6h 53mnonstop
11:10 pm - 7:53 amSFO-BOS
5h 43mnonstop
$242United Airlines
Find Deal
Wed, Feb 5 - Wed, Feb 12
6:00 am - 9:55 amBOS-SFO
6h 55mnonstop
8:42 pm - 5:10 amSFO-BOS
5h 28mnonstop
$243JetBlue
Find Deal
Mon, Feb 10 - Sun, Feb 16
5:20 pm - 9:09 pmBOS-SFO
6h 49mnonstop
1:00 pm - 9:33 pmSFO-BOS
5h 33mnonstop
$248Delta
Find Deal
Sat, Mar 22 - Tue, Mar 25
5:30 pm - 9:14 pmBOS-SFO
6h 44mnonstop
11:20 pm - 8:12 amSFO-BOS
5h 52mnonstop
$256United Airlines
Find Deal
Tue, Apr 1 - Sat, Apr 5
6:20 pm - 10:12 pmBOS-SFO
6h 52mnonstop
10:45 pm - 7:26 amSFO-BOS
5h 41mnonstop
$295Alaska Airlines
Find Deal
Sat, Jun 14 - Sat, Aug 2
6:20 pm - 10:12 pmBOS-SFO
6h 52mnonstop
10:45 pm - 7:26 amSFO-BOS
5h 41mnonstop
$336Alaska Airlines
Find Deal
Wed, Jun 18 - Mon, Jun 23

JetBlue flights from Boston to San Francisco

Our best JetBlue deals on Boston to San Francisco flight tickets
JetBlue
Feb 27
BOS6:00 amBoston Logan Intl
6h 55m
SFO9:55 amSan Francisco
Mar 6
SFO8:30 amSan Francisco
5h 33m
BOS5:03 pmBoston Logan Intl
JetBlue
Feb 20
BOS7:00 amBoston Logan Intl
6h 50m
SFO10:50 amSan Francisco
Feb 25
SFO11:20 pmSan Francisco
5h 30m
BOS7:50 amBoston Logan Intl
JetBlue
Apr 3
BOS6:00 amBoston Logan Intl
6h 39m
SFO9:39 amSan Francisco
Apr 14
SFO3:00 pmSan Francisco
5h 47m
BOS11:47 pmBoston Logan Intl

Delta flights from Boston to San Francisco

Our best Delta deals on Boston to San Francisco flight tickets
Delta
Apr 30
BOS4:30 pmBoston Logan Intl
6h 59m
SFO8:29 pmSan Francisco
May 6
SFO1:00 pmSan Francisco
5h 53m
BOS9:53 pmBoston Logan Intl
Delta
Feb 3
BOS5:50 pmBoston Logan Intl
7h 06m
SFO9:56 pmSan Francisco
Feb 7
SFO7:30 amSan Francisco
5h 40m
BOS4:10 pmBoston Logan Intl
Delta
Feb 22
BOS5:50 pmBoston Logan Intl
7h 06m
SFO9:56 pmSan Francisco
Feb 24
SFO11:15 pmSan Francisco
11h 29m
1 stop
BOS1:44 pmBoston 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 typical price of a round-trip flight between Boston and San Francisco?

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $308.

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

The cheapest day to depart from Boston to San Francisco is on a Thursday when prices can be found for as low as $375. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $524.

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

Our data shows that the cheapest Boston to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $311. Flights at noon are often more expensive with an average ticket price of $377.

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 $358 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 $329 on momondo.

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

There are 4 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 round-trip 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

$64

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 $64. The best round-trip flight deal from Boston to San Francisco found on momondo in the last 72 hours is $130.
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?

    The straight-line distance from Boston Logan Intl to San Francisco is 2690.2 mi. In terms of flight time, this usually takes a little over 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 are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to San Francisco Airport?

  • 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 layovers. 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 license 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?

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


Best airlines flying from Boston to San Francisco

Compare and see reviews for airlines that fly from Boston to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $69Free CancellationRating
6.0
3,443 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $123Free CancellationRating
8.0
9,706 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $131Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $145Free CancellationRating
8.0
8,521 reviews
Search Delta flights
Sun Country AirPriceFrom $162Free CancellationRating
7.0
386 reviews
Search Sun Country Air flights
JetBluePriceFrom $168Free CancellationRating
7.4
3,201 reviews
Search JetBlue flights
United AirlinesPriceFrom $225Free CancellationRating
7.4
8,984 reviews
Search United Airlines flights
SouthwestPriceFrom $342Free CancellationRating
8.1
4,662 reviews
Search Southwest flights
  • Delta Flights From Boston to San Francisco

    The lowest priced Delta flight from Boston to San Francisco from the last 72 hours was $145. Generally, Delta has 8 flights on this route every week with an average price of $364. Delta is rated 8.0/10 by our users.

  • JetBlue Flights From Boston to San Francisco

    The best JetBlue deal for Boston to San Francisco flight tickets found on momondo in the last 72 hours was $168, round-trip. It should be noted that an average JetBlue flight deal for this route in this time was higher, at $360 round-trip. JetBlue operates 20 flights out of Boston into San Francisco in an average week, so prices vary by time and availability. 3,201 JetBlue reviews by users on momondo have scored the airline at 7.4/10.


Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Hayward
Modesto
South San Francisco
Calistoga
Fremont
Daly City
Santa Clara
Roseville
Sonoma
Berkeley
Bodega Bay
Sunnyvale
Redwood City
Vallejo
Burlingame
Palo Alto
Milpitas
Fairfield

Why use momondo?

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

Finding the right flight to San Francisco from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

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

All flight searches from Boston to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Boston to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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.


An easier way to manage your San Francisco trip

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

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