Find Deals on Flights from Boston Logan International to San Francisco (BOS - SFO)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Boston Logan International to San Francisco

(Round-trip)
Depart: Tue Oct 11 2016 Return: Tue Oct 18 2016 Trip spans 8 days
Depart: Thu Nov 3 2016 Return: Tue Nov 8 2016 Trip spans 6 days
Depart: Tue Sep 27 2016 Return: Thu Sep 29 2016 Trip spans 3 days
Depart: Wed Sep 14 2016 Return: Wed Sep 21 2016 Trip spans 8 days
Depart: Fri Jul 29 2016 Return: Fri Aug 5 2016 Trip spans 8 days
Depart: Fri Aug 26 2016 Return: Wed Sep 7 2016 Trip spans 13 days
Depart: Wed Oct 12 2016 Return: Wed Oct 19 2016 Trip spans 8 days
Depart: Wed Oct 26 2016 Return: Tue Nov 1 2016 Trip spans 7 days
Depart: Tue Aug 30 2016 Return: Sat Sep 3 2016 Trip spans 5 days
Depart: Thu Dec 1 2016 Return: Sun Dec 11 2016 Trip spans 11 days
Depart: Thu Aug 25 2016 Return: Mon Aug 29 2016 Trip spans 5 days
Depart: Thu Aug 25 2016 Return: Mon Aug 29 2016 Trip spans 5 days
Depart: Wed Dec 7 2016 Return: Mon Dec 12 2016 Trip spans 6 days
Depart: Sat Sep 17 2016 Return: Sat Sep 24 2016 Trip spans 8 days
Depart: Sat Oct 8 2016 Return: Wed Oct 12 2016 Trip spans 5 days
Depart: Fri Sep 16 2016 Return: Mon Sep 19 2016 Trip spans 4 days
Depart: Tue Jan 3 2017 Return: Thu Feb 2 2017 Trip spans 31 days
Depart: Thu Sep 1 2016 Return: Mon Sep 5 2016 Trip spans 5 days
Depart: Mon Nov 14 2016 Return: Mon Nov 21 2016 Trip spans 8 days
Depart: Thu Oct 20 2016 Return: Sun Oct 23 2016 Trip spans 4 days
Direct flights BOS to SFO on United
Flight # Depart BOS Arrive SFO Sun Mon Tue Wed Thu Fri Sat Valid Between
433 5:55 am 9:30 am Jul 28 - Aug 11
433 5:55 am 9:22 am Jul 26 - Aug 15
433 5:58 am 9:25 am Jul 31 - Aug 14
1649 6:00 am 9:36 am Aug 20 - Aug 27
433 6:00 am 9:27 am Jul 30 - Aug 13
433 6:00 am 9:30 am Aug 16 - Aug 16
433 6:00 am 9:36 am Aug 22 - Aug 30
433 6:00 am 9:36 am Aug 18 - Aug 25
433 6:00 am 9:36 am Aug 17 - Aug 28
452 6:00 am 9:36 am Sep 1 - Sep 1
452 6:00 am 9:36 am Sep 4 - Sep 4
452 6:00 am 9:36 am Aug 31 - Aug 31
452 6:00 am 9:36 am Sep 3 - Sep 3
433 6:04 am 9:36 am Aug 19 - Aug 19
433 6:04 am 9:40 am Aug 26 - Aug 26
452 6:04 am 9:40 am Sep 2 - Sep 2
1649 6:30 am 10:06 am Aug 26 - Aug 26
1649 6:30 am 10:00 am Aug 19 - Aug 19
1649 6:30 am 10:06 am Sep 2 - Sep 2
1649 6:51 am 10:33 am Jul 30 - Aug 13
1649 7:00 am 10:42 am Aug 14 - Aug 14
1649 7:00 am 10:42 am Aug 9 - Aug 15
1649 7:00 am 10:42 am Jul 26 - Aug 5
1649 7:06 am 10:48 am Aug 8 - Aug 8
1649 7:15 am 10:57 am Aug 21 - Aug 28
1649 7:21 am 11:03 am Aug 7 - Aug 7
1649 7:25 am 11:07 am Aug 16 - Sep 1
1930 7:50 am 11:32 am Aug 21 - Aug 28
207 8:00 am 11:36 am Aug 20 - Aug 27
207 8:05 am 11:22 am Aug 12 - Aug 12
207 8:05 am 11:22 am Jul 26 - Aug 4
207 8:05 am 11:22 am Jul 27 - Aug 10
207 8:05 am 11:22 am Aug 15 - Aug 15
207 8:05 am 11:22 am Aug 5 - Aug 5
207 8:05 am 11:22 am Aug 8 - Aug 11
207 8:10 am 11:32 am Jul 30 - Aug 13
207 8:10 am 11:32 am Jul 31 - Aug 14
207 8:10 am 11:28 am Aug 18 - Sep 1
207 8:10 am 11:28 am Aug 31 - Sep 2
207 8:10 am 11:28 am Aug 19 - Aug 26
207 8:10 am 11:28 am Aug 16 - Aug 30
1454 8:25 am 11:51 am Sep 4 - Sep 4
207 8:25 am 11:51 am Aug 21 - Aug 21
207 8:25 am 11:51 am Aug 28 - Aug 28
1930 8:49 am 12:23 pm Aug 18 - Sep 1
1930 8:51 am 12:25 pm Aug 17 - Sep 5
1930 8:51 am 12:25 pm Aug 16 - Aug 16
1930 8:51 am 12:25 pm Aug 19 - Sep 2
1930 8:51 am 12:25 pm Aug 20 - Aug 27
1930 8:53 am 12:27 pm Sep 3 - Sep 3
477 11:07 am 2:44 pm Jul 31 - Aug 7
477 11:10 am 2:44 pm Sep 3 - Sep 3
477 11:15 am 2:49 pm Sep 4 - Sep 4
477 11:15 am 2:52 pm Jul 26 - Aug 12
477 11:15 am 2:52 pm Aug 15 - Aug 15
477 11:15 am 2:52 pm Jul 30 - Aug 13
477 11:15 am 2:49 pm Aug 21 - Aug 28
477 11:20 am 2:54 pm Aug 23 - Aug 23
477 11:20 am 2:54 pm Aug 30 - Sep 6
477 11:20 am 2:54 pm Aug 17 - Aug 29
1279 2:54 pm 6:27 pm Aug 20 - Aug 27
1572 3:47 pm 7:20 pm Aug 13 - Aug 13
1572 3:47 pm 7:20 pm Jul 26 - Aug 14
1572 3:50 pm 7:23 pm Sep 4 - Sep 4
1572 3:50 pm 7:23 pm Aug 16 - Sep 2
1572 3:52 pm 7:25 pm Aug 6 - Aug 6
1572 3:52 pm 7:25 pm Aug 1 - Aug 15
1572 4:00 pm 7:33 pm Sep 3 - Sep 3
1474 5:25 pm 8:47 pm Aug 21 - Aug 28
576 5:50 pm 9:21 pm Jul 31 - Aug 14
576 5:51 pm 9:30 pm Jul 26 - Aug 9
576 5:52 pm 9:31 pm Aug 3 - Aug 10
576 5:55 pm 9:26 pm Jul 28 - Aug 15
576 6:05 pm 9:27 pm Aug 26 - Aug 26
576 6:15 pm 9:29 pm Aug 29 - Sep 5
576 6:15 pm 9:29 pm Aug 20 - Aug 27
576 6:15 pm 9:29 pm Aug 18 - Aug 25
576 6:20 pm 9:34 pm Aug 16 - Aug 16
576 6:25 pm 9:39 pm Aug 21 - Sep 4
576 6:30 pm 9:44 pm Sep 2 - Sep 2
1010 7:32 pm 11:15 pm Aug 14 - Aug 14
366 7:35 pm 11:08 pm Aug 16 - Sep 2
1010 7:45 pm 11:30 pm Jul 26 - Aug 12
1010 7:45 pm 11:30 pm Aug 15 - Aug 15
1010 8:30 pm 12:03 am Aug 18 - Aug 29
1616 8:30 pm 12:03 am Sep 1 - Sep 1
693 8:38 pm 12:25 am Aug 6 - Aug 6
1010 8:40 pm 12:13 am Aug 21 - Aug 28
693 8:48 pm 12:35 am Aug 13 - Aug 13
693 9:05 pm 12:52 am Jul 26 - Aug 15
693 9:07 pm 12:54 am Jul 31 - Aug 14
* 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.

We compile tonnes of data for you
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 email and someone from our team will get back to you promptly.

^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users 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.
Airports
Origin

Boston
$331
Destination

San Francisco
$331
Airlines Airline reviews

201 travelers who booked a flight from Boston to San Francisco rated their chosen airlines with an average of 7.2.

Overall
7.3
Boarding
7.7
Crew
8.0
Comfort
7.0
Food
6.0
Entertainment
6.7