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

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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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from San Francisco to Boston Logan International

(Round-trip)
Depart: Mon Sep 12 2016 Return: Tue Sep 13 2016 Trip spans 2 days
Depart: Tue Sep 27 2016 Return: Tue Oct 4 2016 Trip spans 8 days
Depart: Thu Oct 27 2016 Return: Mon Oct 31 2016 Trip spans 5 days
Depart: Wed Sep 14 2016 Return: Thu Sep 15 2016 Trip spans 2 days
Depart: Wed Oct 19 2016 Return: Sun Oct 23 2016 Trip spans 5 days
Depart: Sat Feb 4 2017 Return: Sun Feb 12 2017 Trip spans 9 days
Depart: Tue Aug 30 2016 Return: Fri Sep 9 2016 Trip spans 11 days
Depart: Tue Nov 1 2016 Return: Wed Nov 9 2016 Trip spans 9 days
Depart: Sun Oct 30 2016 Return: Thu Nov 3 2016 Trip spans 5 days
Depart: Wed Sep 21 2016 Return: Mon Sep 26 2016 Trip spans 6 days
Depart: Fri Nov 4 2016 Return: Sun Nov 6 2016 Trip spans 3 days
Depart: Thu Dec 1 2016 Return: Sat Dec 10 2016 Trip spans 10 days
Depart: Mon Oct 24 2016 Return: Fri Oct 28 2016 Trip spans 5 days
Depart: Wed Oct 5 2016 Return: Fri Nov 11 2016 Trip spans 38 days
Depart: Tue Dec 20 2016 Return: Thu Jan 5 2017 Trip spans 17 days
Depart: Thu Jan 5 2017 Return: Tue Jan 10 2017 Trip spans 6 days
Depart: Tue Nov 1 2016 Return: Sat Nov 5 2016 Trip spans 5 days
Depart: Wed Feb 8 2017 Return: Tue Feb 14 2017 Trip spans 7 days
Depart: Thu Jan 26 2017 Return: Sun Jan 29 2017 Trip spans 4 days
Depart: Mon Aug 29 2016 Return: Sat Sep 10 2016 Trip spans 13 days
Direct flights SFO to BOS on United
Flight # Depart SFO Arrive BOS Sun Mon Tue Wed Thu Fri Sat Valid Between
1946 6:00 am 2:48 pm Aug 23 - Sep 2
1946 6:00 am 2:49 pm Sep 16 - Sep 27
1946 6:00 am 2:49 pm Sep 21 - Sep 22
1946 6:00 am 2:49 pm Sep 28 - Oct 5
1946 6:00 am 2:49 pm Sep 7 - Sep 14
1946 6:00 am 2:48 pm Sep 6 - Sep 6
1946 6:00 am 2:48 pm Sep 4 - Sep 4
1946 6:00 am 2:48 pm Sep 3 - Sep 3
1946 6:00 am 2:48 pm Sep 5 - Sep 5
1946 6:00 am 2:49 pm Sep 8 - Sep 15
1946 6:00 am 2:49 pm Oct 2 - Oct 2
1946 6:00 am 2:49 pm Sep 9 - Sep 9
1946 6:00 am 2:49 pm Sep 11 - Sep 25
1946 6:00 am 2:49 pm Sep 29 - Sep 29
768 8:20 am 5:07 pm Sep 10 - Oct 1
768 8:20 am 5:00 pm Sep 7 - Sep 27
768 8:20 am 5:07 pm Oct 2 - Oct 2
768 8:20 am 5:00 pm Oct 3 - Oct 5
768 8:20 am 5:02 pm Sep 3 - Sep 5
768 8:33 am 5:20 pm Sep 30 - Sep 30
768 8:38 am 5:20 pm Sep 2 - Sep 2
768 8:42 am 5:29 pm Sep 28 - Sep 29
768 8:44 am 5:33 pm Sep 6 - Sep 6
788 10:43 am 7:28 pm Sep 5 - Sep 5
788 10:43 am 7:28 pm Sep 4 - Sep 4
788 10:45 am 7:30 pm Aug 30 - Sep 6
788 10:45 am 7:30 pm Aug 27 - Sep 3
788 11:25 am 8:07 pm Oct 1 - Oct 1
788 11:25 am 8:07 pm Sep 26 - Oct 4
788 11:25 am 8:07 pm Sep 20 - Sep 23
788 11:25 am 8:07 pm Sep 25 - Sep 25
788 11:25 am 8:07 pm Sep 17 - Sep 24
788 11:25 am 8:07 pm Oct 2 - Oct 2
788 11:25 am 8:07 pm Sep 7 - Sep 16
788 11:25 am 8:07 pm Sep 10 - Sep 10
788 11:25 am 8:07 pm Sep 11 - Sep 18
788 11:55 am 8:37 pm Sep 19 - Sep 19
242 1:05 pm 9:52 pm Sep 9 - Sep 9
242 1:05 pm 9:52 pm Sep 8 - Sep 15
242 1:05 pm 9:54 pm Sep 6 - Sep 6
242 1:05 pm 9:54 pm Sep 3 - Sep 3
242 1:05 pm 9:54 pm Sep 5 - Sep 5
242 1:05 pm 9:52 pm Sep 16 - Oct 5
242 1:13 pm 10:00 pm Sep 10 - Sep 10
242 1:13 pm 10:00 pm Sep 17 - Oct 1
242 1:24 pm 10:11 pm Sep 7 - Sep 7
242 1:28 pm 10:15 pm Sep 18 - Sep 18
242 1:28 pm 10:15 pm Sep 25 - Sep 25
242 1:28 pm 10:15 pm Oct 2 - Oct 2
242 1:28 pm 10:15 pm Sep 11 - Sep 11
242 1:31 pm 10:20 pm Sep 4 - Sep 4
242 1:36 pm 10:25 pm Sep 2 - Sep 2
708 2:30 pm 11:08 pm Sep 3 - Sep 3
708 2:55 pm 11:34 pm Sep 12 - Sep 12
708 3:00 pm 11:39 pm Sep 19 - Sep 26
708 3:00 pm 11:35 pm Sep 22 - Sep 27
708 3:00 pm 11:39 pm Sep 8 - Sep 15
708 3:00 pm 11:39 pm Sep 29 - Sep 29
708 3:00 pm 11:35 pm Oct 3 - Oct 3
708 3:05 pm 11:44 pm Sep 7 - Sep 28
708 3:20 pm 11:59 pm Sep 11 - Oct 2
1939 3:30 pm 12:09 am Sep 9 - Sep 30
444 4:22 pm 1:01 am Sep 6 - Sep 6
444 4:25 pm 1:04 am Sep 4 - Sep 4
444 4:25 pm 1:04 am Sep 5 - Sep 5
444 4:35 pm 1:14 am Sep 26 - Oct 2
444 4:35 pm 1:14 am Sep 25 - Sep 25
444 4:35 pm 1:14 am Sep 11 - Sep 18
444 4:35 pm 1:14 am Sep 30 - Sep 30
444 4:35 pm 1:14 am Sep 7 - Sep 22
444 4:37 pm 1:16 am Aug 26 - Sep 2
444 4:45 pm 1:24 am Oct 3 - Oct 3
444 4:52 pm 1:31 am Sep 23 - Sep 23
2013 9:00 pm 5:39 am Sep 23 - Sep 23
2013 9:00 pm 5:37 am Sep 7 - Sep 15
2013 9:00 pm 5:37 am Sep 26 - Oct 5
2013 9:00 pm 5:39 am Sep 9 - Sep 9
2013 9:00 pm 5:37 am Sep 16 - Sep 22
2013 9:05 pm 5:44 am Sep 5 - Sep 5
2013 9:05 pm 5:44 am Sep 6 - Sep 6
2013 9:10 pm 5:49 am Sep 11 - Sep 25
2013 9:15 pm 5:54 am Aug 26 - Sep 2
2013 9:18 pm 5:57 am Sep 10 - Oct 1
2013 9:25 pm 6:04 am Oct 2 - Oct 2
380 10:05 pm 6:44 am Sep 27 - Sep 27
380 10:05 pm 6:39 am Oct 1 - Oct 1
380 10:05 pm 6:44 am Sep 13 - Sep 20
380 10:05 pm 6:32 am Sep 5 - Sep 5
380 10:05 pm 6:32 am Sep 1 - Sep 2
380 10:30 pm 7:03 am Sep 3 - Sep 3
380 10:30 pm 7:04 am Sep 12 - Sep 16
380 10:30 pm 7:04 am Sep 11 - Sep 25
380 10:30 pm 7:04 am Sep 21 - Sep 28
380 10:30 pm 7:04 am Sep 29 - Oct 3
380 10:30 pm 7:04 am Sep 30 - Sep 30
380 10:30 pm 7:09 am Oct 2 - Oct 2
380 10:30 pm 7:04 am Sep 22 - Sep 26
380 10:30 pm 7:04 am Sep 19 - Sep 23
380 10:30 pm 7:04 am Sep 7 - Sep 14
380 10:30 pm 6:57 am Aug 23 - Sep 6
380 10:35 pm 7:14 am Sep 17 - Sep 24
380 10:35 pm 7:14 am Sep 10 - Sep 10
380 10:35 pm 7:08 am Sep 4 - Sep 4
1740 11:10 pm 7:51 am Sep 6 - Sep 6
1740 11:10 pm 7:51 am Aug 26 - Sep 2
1740 11:20 pm 7:59 am Sep 5 - Sep 5
1433 11:44 pm 8:20 am Sep 4 - Sep 4
1433 11:58 pm 8:39 am Aug 25 - Sep 5
1433 11:59 pm 8:40 am Aug 26 - Sep 2
* 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

San Francisco
$230
Destination

Boston
$230
Airlines Airline reviews

212 travelers who booked a flight from San Francisco to Boston rated their chosen airlines with an average of 7.3.

Overall
7.6
Boarding
7.9
Crew
8.0
Comfort
7.2
Food
6.0
Entertainment
6.8