Find cheap flights from Boston to San Francisco

BOS - SFO

Find cheap flights from Boston to San Francisco

Round-trip
Economy
Boston (BOS)
San Francisco
Fri 7/3
Fri 7/10
Any month
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Good to know

Low season

September Best time to beat the crowds with an average 14% drop in price.

High season

December Most popular time to fly with an average 20% increase in price.

Average price of a round-trip

$323 (avg. price over the last 2 weeks)

Good deal for a round-trip

$294 or less

When to book flights from Boston to San Francisco

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $228 or less.
  • The cheapest flight from Boston to San Francisco was found 51 days before departure, on average.
  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is September.
  • Morning departure is around 18% cheaper than an evening flight, on average*.
  • After long flights from Boston to San Francisco, you are most likely looking to rest and recuperate. That is where the Best Western Plus Grosvenor Airport Hotel can help. This hotel is located just 1.5 miles from the airport and is the perfect hotel for those traveling for both business and pleasure.
  • If you feel like you need of a bit of a pick-me-up after your long flight from Boston to San Francisco, stop by Freshen Up. This unique airport concept is located in the main hall of San Francisco International Airport near the entrance to gates G91-G102. Freshen Up offers shower facilities, toiletries, ironing facilities, and undergarments, all designed to get you feeling like yourself again after your long flight.
  • If you are craving a cold beer before your flight from Boston to San Francisco, then why not stop by the Boston Beer Works? Located in Terminal C near Gate C-14 at Boston Logan International Airport, this restaurant offers soups and salads as well as a variety of wraps and plates and, of course, a wide selection of craft beers.
  • When looking for something completely unique to commemorate your time in Boston, stop by New England Collections located in Terminal A near Gate A-7 at Boston Logan International Airport. This specialty shop carries a whole host of gifts, clothing, and novelties that highlight the unique New England lifestyle.
  • Sports fans with some time on their hands before flights from Boston to San Francisco should make it a point to stop in at Game On located in Terminal A near Gate A15 in Boston Logan International Airport. This unique concept is part restaurant, part sports bar, and part game room.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking Boston to San Francisco flights

Are flight prices cheaper from Boston to San Francisco because of Coronavirus (COVID-19)?

How long does a flight from Boston to San Francisco take?

How many flights are there between Boston and San Francisco?

Which airlines provide the cheapest flights from Boston to San Francisco?

Do I need a passport to fly between Boston and San Francisco?

Which airlines fly most frequently between Boston and San Francisco?

What’s the cheapest day of the week to fly Boston to San Francisco?

Which airports will I be using when flying from Boston to San Francisco?

If my pet travels with me on my trip from Boston to San Francisco where will I be able to pick it up upon arrival?

If I am being picked up at San Francisco Airport, where is the best place for my ride to meet me?

Is there a post office at San Francisco Airport?

Where can I get an Uber at San Francisco International Airport?

How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

Top 3 airlines serving Boston Logan Intl to San Francisco

Scores according to KAYAK customer reviews

8.2
JetBlue
Overall score based on 19,167 reviews
8.3
Boarding
8.3
Comfort
8.6
Crew
7.9
Entertainment
7.8
Food
Airline reviews
Read more about JetBlue

Book cheap flights from Boston to San Francisco (round-trip)

Airports
Origin
Boston
$192
only
$192
Destination
San Francisco
$192
only
$192
Wed, Aug 12
BOS
Boston Logan Airport
SFO
San Francisco Airport
21h 50m
Mon, Aug 17
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 6 days
Based on null reviews
Tue, Jul 28
BOS
Boston Logan Airport
SFO
San Francisco Airport
39h 10m
Wed, Aug 12
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 16 days
Based on null reviews
Wed, Jul 29
BOS
Boston Logan Airport
SFO
San Francisco Airport
39h 10m
Sat, Aug 15
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 18 days
Based on null reviews
Wed, Aug 5
BOS
Boston Logan Airport
SFO
San Francisco Airport
28h 00m
Wed, Aug 12
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 8 days
Based on null reviews
Tue, Aug 4
BOS
Boston Logan Airport
SFO
San Francisco Airport
42h 05m
Mon, Aug 10
SFO
San Francisco Airport
BOS
Boston Logan Airport
29h 45m
Trip: 7 days
Based on null reviews
Fri, Aug 14
BOS
Boston Logan Airport
SFO
San Francisco Airport
21h 50m
Wed, Aug 19
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 6 days
Based on null reviews
Thu, Jul 30
BOS
Boston Logan Airport
SFO
San Francisco Airport
27h 35m
Sat, Aug 15
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 17 days
Based on null reviews
Tue, Aug 11
BOS
Boston Logan Airport
SFO
San Francisco Airport
21h 50m
Sat, Aug 22
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 12 days
Based on null reviews
Thu, Aug 6
BOS
Boston Logan Airport
SFO
San Francisco Airport
20h 12m
Tue, Aug 11
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 6 days
Based on null reviews
Tue, Jul 28
BOS
Boston Logan Airport
SFO
San Francisco Airport
39h 10m
Sun, Aug 9
SFO
San Francisco Airport
BOS
Boston Logan Airport
20h 26m
Trip: 13 days
Based on null reviews
Wed, Jul 29
BOS
Boston Logan Airport
SFO
San Francisco Airport
39h 10m
Sun, Aug 9
SFO
San Francisco Airport
BOS
Boston Logan Airport
20h 26m
Trip: 12 days
Based on null reviews
Sun, Jul 26
BOS
Boston Logan Airport
SFO
San Francisco Airport
27h 35m
Wed, Aug 12
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 18 days
Based on null reviews
Wed, Aug 5
BOS
Boston Logan Airport
SFO
San Francisco Airport
28h 00m
Fri, Aug 14
SFO
San Francisco Airport
BOS
Boston Logan Airport
24h 23m
Trip: 10 days
Based on null reviews
Wed, Jul 22
BOS
Boston Logan Airport
SFO
San Francisco Airport
20h 00m
Mon, Jul 27
SFO
San Francisco Airport
BOS
Boston Logan Airport
12h 26m
Trip: 6 days
Based on null reviews
Tue, Aug 4
BOS
Boston Logan Airport
SFO
San Francisco Airport
42h 05m
Sun, Aug 9
SFO
San Francisco Airport
BOS
Boston Logan Airport
20h 26m
Trip: 6 days
Based on null reviews
Tue, Jul 28
BOS
Boston Logan Airport
SFO
San Francisco Airport
39h 10m
Sun, Aug 2
SFO
San Francisco Airport
BOS
Boston Logan Airport
39h 47m
Trip: 6 days
Based on null reviews
Thu, Jul 30
BOS
Boston Logan Airport
SFO
San Francisco Airport
17h 40m
Thu, Aug 6
SFO
San Francisco Airport
BOS
Boston Logan Airport
20h 26m
Trip: 8 days
Based on null reviews
Tue, Jul 14
BOS
Boston Logan Airport
SFO
San Francisco Airport
39h 10m
Thu, Jul 16
SFO
San Francisco Airport
BOS
Boston Logan Airport
20h 26m
Trip: 3 days
Based on null reviews
Sat, Jul 18
BOS
Boston Logan Airport
SFO
San Francisco Airport
27h 35m
Sat, Jul 25
SFO
San Francisco Airport
BOS
Boston Logan Airport
25h 58m
Trip: 8 days
Based on null reviews
Thu, Aug 6
BOS
Boston Logan Airport
SFO
San Francisco Airport
20h 12m
Sun, Aug 9
SFO
San Francisco Airport
BOS
Boston Logan Airport
20h 26m
Trip: 4 days
Based on null reviews
Show more results

Book cheap flights from Boston to San Francisco (one-way)

Airports
Origin
Boston
$80
only
$80
Destination
San Francisco
$80
only
$80
Wed, Aug 5
BOS
Boston Logan Airport
SFO
San Francisco Airport
20h 12m
Based on null reviews
Tue, Aug 4
BOS
Boston Logan Airport
SFO
San Francisco Airport
6h 39m
Based on null reviews
Sat, Jul 18
BOS
Boston Logan Airport
SFO
San Francisco Airport
8h 19m
Based on null reviews
Wed, Aug 5
BOS
Boston Logan Airport
SFO
San Francisco Airport
8h 27m
Based on null reviews
Wed, Jul 29
BOS
Boston Logan Airport
SFO
San Francisco Airport
20h 00m
Based on null reviews
Tue, Jul 7
BOS
Boston Logan Airport
SFO
San Francisco Airport
39h 10m
Based on null reviews
Mon, Aug 17
BOS
Boston Logan Airport
SFO
San Francisco Airport
29h 38m
Based on null reviews
Wed, Jul 15
BOS
Boston Logan Airport
SFO
San Francisco Airport
27h 35m
Based on null reviews
Fri, Aug 14
BOS
Boston Logan Airport
SFO
San Francisco Airport
8h 27m
Based on null reviews
Wed, Aug 12
BOS
Boston Logan Airport
SFO
San Francisco Airport
19h 13m
Based on null reviews
Fri, Aug 14
BOS
Boston Logan Airport
SFO
San Francisco Airport
8h 27m
Based on null reviews
Wed, Aug 12
BOS
Boston Logan Airport
SFO
San Francisco Airport
29h 38m
Based on null reviews
Fri, Jul 10
BOS
Boston Logan Airport
SFO
San Francisco Airport
8h 27m
Based on null reviews
Thu, Jul 16
BOS
Boston Logan Airport
SFO
San Francisco Airport
17h 40m
Based on null reviews
Thu, Aug 13
BOS
Boston Logan Airport
SFO
San Francisco Airport
29h 38m
Based on null reviews
Thu, Aug 13
BOS
Boston Logan Airport
SFO
San Francisco Airport
21h 50m
Based on null reviews
Mon, Aug 31
BOS
Boston Logan Airport
SFO
San Francisco Airport
29h 38m
Based on null reviews
Mon, Aug 24
BOS
Boston Logan Airport
SFO
San Francisco Airport
29h 38m
Based on null reviews
Sun, Jul 26
BOS
Boston Logan Airport
SFO
San Francisco Airport
27h 35m
Based on null reviews
Tue, Aug 4
BOS
Boston Logan Airport
SFO
San Francisco Airport
42h 05m
Based on null reviews
Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
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