Cheap flights from Boston to San Francisco from $133

Round-trip
1 adult
Economy
From?
To?
Mon 5/30
Mon 6/6

Deals available from 900+ travel sites.

Flight information for Boston to San Francisco
(BOS to SFO)

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

Best Price Found

$138

Fastest flight time

6h 38m

Direct flights

Mon, Thu, Fri, Sat and Sun

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Boston in the past 72 hours is $138. The best round-trip flight deal from Boston to San Francisco found on momondo in the last 72 hours is $276.
The fastest flight from Boston to San Francisco takes 6h 38m
Direct flights go from Boston to San Francisco on Monday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is American Airlines.
There is 1 airport near San Francisco: San Francisco (SFO)

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 from Boston to San Francisco?

January

The cheapest time of year to fly to San Francisco from Boston is January. Most expensive is December

What is the cheapest day to depart Boston for San Francisco?

Wednesday

The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday

When is the cheapest time to fly from Boston to San Francisco?

in the evening

Boston to San Francisco flights are approximately 14% more expensive at noon than in the evening

What is the cheapest airline that flies to San Francisco from Boston?

Juneyao Airlines

Alaska Airlines, Delta, and Frontier are the most popular carriers operating from Boston to San Francisco

What is the cheapest Boston to San Francisco flight route?

Boston Logan Intl - San Francisco

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

How far in advance should you book Boston to San Francisco flights?

31 days before

The cheapest time to buy a flight from Boston to San Francisco is approximately 31 days to departure

Boston Logan Intl Airport (BOS) to San Francisco Airport (SFO)$276
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Boston Logan Intl Airport (BOS) to Oakland Airport (OAK)$278
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Boston Logan Intl Airport (BOS) to San Jose Airport (SJC)$278
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Providence-TFGreen Airport (PVD) to San Francisco Airport (SFO)$406
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Boston Logan Intl Airport (BOS) to Santa Rosa Sonoma County Airport (STS)$448
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Providence-TFGreen Airport (PVD) to San Jose Airport (SJC)$728
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When you’re planning your trip from Boston to San Francisco, the most popular airport-to-airport route is Boston Logan Intl Airport to San Francisco Airport. If you are looking for alternate airports to fly out of when traveling to San Francisco, you can try Boston Logan Intl Airport or Providence-TFGreen Airport which are located in Boston and Providence respectively. When traveling from Boston, it is helpful to have an alternative airport to fly into when you land in San Francisco. Good options for arrival airports in San Francisco, you can try Oakland Airport (in Oakland), San Jose Airport (in San Jose), or San Francisco Airport (in San Francisco). In May, $276 is typically the cheapest round trip price you’ll find from Boston to San Francisco which you can find when you fly BOS — SFO.


Easily compare round-trip flights from Boston to San Francisco

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Boston to San Francisco by changing tabs
Multiple Airlines
Jun 13
BOS6:14 amBoston Logan Intl
40h 53m
2 stops
SFO11:07 pmSan Francisco
Jun 20
SFO8:55 amSan Francisco
19h 10m
2 stops
BOS4:05 amBoston Logan Intl
Alaska Airlines
Jun 13
BOS3:00 amBoston Logan Intl
9h 40m
1 stop
SFO12:40 pmSan Francisco
Jun 20
SFO3:00 amSan Francisco
8h 05m
1 stop
BOS11:05 amBoston Logan Intl
JetBlue
Jun 13
BOS4:00 amBoston Logan Intl
6h 30m
SFO10:30 amSan Francisco
Jun 20
SFO9:00 amSan Francisco
5h 35m
BOS2:35 pmBoston Logan Intl
American Airlines
Jun 13
BOS11:45 amBoston Logan Intl
22h 36m
1 stop
SFO10:21 amSan Francisco
Jun 20
SFO7:45 amSan Francisco
21h 34m
1 stop
BOS5:19 amBoston Logan Intl
United Airlines
Jun 13
BOS4:15 amBoston Logan Intl
8h 24m
1 stop
SFO12:39 pmSan Francisco
Jun 20
SFO7:25 amSan Francisco
5h 41m
BOS1:06 pmBoston Logan Intl
Multiple Airlines
Jun 14
BOS6:14 amBoston Logan Intl
40h 53m
2 stops
SFO11:07 pmSan Francisco
Jun 21
SFO8:55 amSan Francisco
19h 10m
2 stops
BOS4:05 amBoston Logan Intl

Find the cheapest one-way flights from Boston to San Francisco

If you're looking for one-way flights from Boston to San Francisco, view some of our deals below provided by American Airlines, JetBlue and United Airlines
American Airlines
Oct 18
BOS1:19 pmBoston Logan Intl
8h 24m
1 stop
SFO9:43 pmSan Francisco
JetBlue
Oct 11
BOS5:44 amBoston Logan Intl
10h 40m
1 stop
SFO4:24 pmSan Francisco
United Airlines
Sep 15
BOS2:10 amBoston Logan Intl
6h 35m
SFO8:45 amSan Francisco

Search last-minute flights to San Francisco from Boston

Find and compare round-trip flight prices for your last-minute flight from Boston to San Francisco
Multiple Airlines
Jun 2
BOS2:15 pmBoston Logan Intl
16h 24m
1 stop
SFO6:39 amSan Francisco
Jun 6
SFO9:30 amSan Francisco
7h 59m
1 stop
BOS5:29 pmBoston Logan Intl
Delta
Jun 2
BOS8:29 amBoston Logan Intl
9h 43m
1 stop
SFO6:12 pmSan Francisco
Jun 6
SFO9:30 amSan Francisco
7h 59m
1 stop
BOS5:29 pmBoston Logan Intl
United Airlines
Jun 1
BOS2:31 pmBoston Logan Intl
18h 12m
1 stop
SFO8:43 amSan Francisco
Oct 1
SFO4:35 pmSan Francisco
5h 41m
BOS10:16 pmBoston Logan Intl
JetBlue
Jun 1
BOS5:06 amBoston Logan Intl
9h 22m
1 stop
SFO2:28 pmSan Francisco
Jun 6
SFO7:59 pmSan Francisco
10h 46m
1 stop
BOS6:45 amBoston Logan Intl
Multiple Airlines
Jun 3
BOS2:15 pmBoston Logan Intl
16h 24m
1 stop
SFO6:39 amSan Francisco
Jun 21
SFO6:48 pmSan Francisco
16h 07m
2 stops
BOS10:55 amBoston Logan Intl
United Airlines
Jun 1
BOS2:31 pmBoston Logan Intl
18h 12m
1 stop
SFO8:43 amSan Francisco
Oct 1
SFO7:59 pmSan Francisco
8h 07m
1 stop
BOS4:06 amBoston Logan Intl

Best airlines flying from Boston to San Francisco

Compare and see reviews for airlines that fly from Boston to San Francisco with momondo
AirlineRatingFree CancellationPrice
Juneyao AirlinesPriceFrom $12Free CancellationRating
0.0
Search Juneyao Airlines flights
Spirit AirlinesPriceFrom $84Free CancellationRating
6.2
6.4

Boarding

5.8

Comfort

6.9

Crew

4.8

Entertainment

5.1

Food

Reviews

better way to pick up seat for me and the girls

1 / 10
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $113Free CancellationRating
8.0
8.3

Boarding

8.0

Comfort

8.5

Crew

7.4

Entertainment

7.2

Food

Reviews

Smooth short flight. Nothing special but no complaints

1 / 10
Search Alaska Airlines flights
FrontierPriceFrom $114Free CancellationRating
6.1
6.4

Boarding

5.8

Comfort

6.9

Crew

4.7

Entertainment

5.0

Food

Reviews

8 hrs later the fly was cancel

1 / 10
Search Frontier flights
DeltaPriceFrom $124Free CancellationRating
7.9
7.9

Boarding

8.0

Comfort

8.3

Crew

7.7

Entertainment

7.3

Food

Reviews

Best airline ever!

1 / 10
Search Delta flights
United AirlinesPriceFrom $138Free CancellationRating
7.4
7.7

Boarding

7.2

Comfort

8.0

Crew

6.9

Entertainment

6.7

Food

Reviews

We got stuck off loading for almost 2 hours.

1 / 10
Search United Airlines flights
JetBluePriceFrom $144Free CancellationRating
6.9
7.1

Boarding

7.4

Comfort

7.8

Crew

7.1

Entertainment

6.6

Food

Reviews

The crew was great but the airplane was small and uncomfortable.

1 / 10
Search JetBlue flights
American AirlinesPriceFrom $163Free CancellationRating
7.3
7.7

Boarding

7.2

Comfort

8.1

Crew

7.1

Entertainment

6.6

Food

Reviews

I never took this fly, I make a new reservation direct whith Spirit, I try to cancelled it

1 / 10
Search American Airlines flights
Sun Country AirPriceFrom $194Free CancellationRating
7.4
7.7

Boarding

7.4

Comfort

8.2

Crew

6.4

Entertainment

6.5

Food

Reviews

Unfriendly staff, the pilot never announced anything during the entire flight including we’re at altitude, what the weather was like at the destination how much time is left if we were ahead or behind schedule etc. Very funny gay gene flight crew.

1 / 10
Search Sun Country Air flights
  • Alaska Airlines Flights From Boston to San Francisco

    The lowest priced Alaska Airlines flight from Boston to San Francisco from the last 72 hours was $113. Generally, Alaska Airlines has 9 flights on this route every week with an average price of $307. Alaska Airlines is rated 8.0/10 by our users.

  • Delta Flights From Boston to San Francisco

    The best Delta deal for Boston to San Francisco flight tickets found on momondo in the last 72 hours was $124, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $315 round-trip. Delta operates 12 flights out of Boston into San Francisco in an average week, so prices vary by time and availability. 385 Delta reviews by users on momondo have scored the airline at 7.9/10.


Delta flights from Boston to San Francisco

Our best Delta deals on Boston to San Francisco flight tickets
Delta
Jun 2
BOS8:29 amBoston Logan Intl
9h 43m
1 stop
SFO6:12 pmSan Francisco
Jun 6
SFO9:30 amSan Francisco
7h 59m
1 stop
BOS5:29 pmBoston Logan Intl
Delta
Jun 3
BOS2:05 amBoston Logan Intl
9h 50m
1 stop
SFO11:55 amSan Francisco
Jun 6
SFO9:30 amSan Francisco
7h 59m
1 stop
BOS5:29 pmBoston Logan Intl
Delta
Jun 2
BOS1:59 pmBoston Logan Intl
8h 31m
1 stop
SFO10:30 pmSan Francisco
Jun 14
SFO6:05 pmSan Francisco
5h 53m
BOS11:58 pmBoston Logan Intl

United Airlines flights from Boston to San Francisco

Our best United Airlines deals on Boston to San Francisco flight tickets
United Airlines
Jun 13
BOS4:15 amBoston Logan Intl
8h 24m
1 stop
SFO12:39 pmSan Francisco
Jun 20
SFO7:25 amSan Francisco
5h 41m
BOS1:06 pmBoston Logan Intl
United Airlines
Jun 14
BOS2:30 amBoston Logan Intl
6h 23m
SFO8:53 amSan Francisco
Jun 21
SFO9:15 amSan Francisco
7h 33m
1 stop
BOS4:48 pmBoston Logan Intl
United Airlines
Jun 15
BOS6:35 amBoston Logan Intl
7h 46m
1 stop
SFO2:21 pmSan Francisco
Jun 22
SFO9:30 amSan Francisco
5h 49m
BOS3:19 pmBoston Logan Intl

  • Are airlines flying from Boston Logan Intl to San Francisco offering flexible cancellation due to COVID-19?

    Due to the global impact of COVID-19, some of our airline partners operating flights from Boston Logan Intl to San Francisco, such as JetBlue, United Airlines, and Delta may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.

  • 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 19m.



Alternative routes for Boston to San Francisco

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Boston to Los Angeles Flights
Fastest flight time6h 04m
Cheapest price$268
Boston to San Diego Flights
Fastest flight time6h 04m
Cheapest price$267
Boston to Ontario Flights
Fastest flight time8h 11m
Cheapest price$318
Boston to Oakland, California Flights
Fastest flight time8h 47m
Cheapest price$278
Boston to San Jose Flights
Fastest flight time6h 34m
Cheapest price$278
Boston to Burbank Flights
Fastest flight time8h 21m
Cheapest price$368
Boston to Sacramento Flights
Fastest flight time6h 26m
Cheapest price$296
Boston to Reno Flights
Fastest flight time8h 34m
Cheapest price$324
Boston to Santa Ana Flights
Fastest flight time8h 20m
Cheapest price$357
Boston to Palm Springs Flights
Fastest flight time7h 39m
Cheapest price$292
Boston to Long Beach Flights
Fastest flight time9h 02m
Cheapest price$445
Boston to Santa Barbara Flights
Fastest flight time7h 54m
Cheapest price$454

Similar Boston to San Francisco flights

Flexible with your destination? Broaden your search and find flights similar to your Boston to San Francisco route

Why use momondo?

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.

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

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.

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.


Here's why travelers choose to use momondo
Flexible Travel
momondo understands the need for flexibility and we have a filter specifically for flights with no change fees.
Expert Insights
Data driven insights designed to help you find a great flight deal. From the cheapest time to depart to how far in advance to book.
Price Alerts
Track the price of your preferred flight route and be notified when it changes.