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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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: Fri Sep 9 2016 Return: Fri Sep 23 2016 Trip spans 15 days
Depart: Mon Jun 20 2016 Return: Wed Jun 22 2016 Trip spans 3 days
Depart: Sun May 29 2016 Return: Tue Jun 7 2016 Trip spans 10 days
Depart: Tue Oct 18 2016 Return: Tue Oct 25 2016 Trip spans 8 days
Depart: Sat Jun 11 2016 Return: Tue Jun 28 2016 Trip spans 18 days
Depart: Mon Aug 29 2016 Return: Tue Aug 30 2016 Trip spans 2 days
Depart: Sat May 28 2016 Return: Mon Jun 6 2016 Trip spans 10 days
Depart: Tue Aug 23 2016 Return: Sat Aug 27 2016 Trip spans 5 days
Depart: Tue Aug 30 2016 Return: Wed Sep 7 2016 Trip spans 9 days
Depart: Mon Jun 13 2016 Return: Wed Jun 29 2016 Trip spans 17 days
Depart: Wed Sep 14 2016 Return: Wed Sep 21 2016 Trip spans 8 days
Depart: Wed Nov 23 2016 Return: Wed Nov 30 2016 Trip spans 8 days
Depart: Tue Oct 4 2016 Return: Wed Oct 19 2016 Trip spans 16 days
Depart: Fri Sep 16 2016 Return: Sat Sep 17 2016 Trip spans 2 days
Depart: Thu Jun 9 2016 Return: Mon Jun 13 2016 Trip spans 5 days
Depart: Fri Nov 11 2016 Return: Mon Nov 14 2016 Trip spans 4 days
Depart: Fri May 27 2016 Return: Sun May 29 2016 Trip spans 3 days
Depart: Fri Oct 14 2016 Return: Sat Oct 15 2016 Trip spans 2 days
Depart: Wed Aug 24 2016 Return: Thu Aug 25 2016 Trip spans 2 days
Depart: Mon May 30 2016 Return: Mon Jun 13 2016 Trip spans 15 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 2:47 pm Jun 12 - Jun 26
1946 6:00 am 2:49 pm May 26 - Jun 2
1946 6:00 am 2:47 pm Jun 11 - Jun 11
1946 6:00 am 2:47 pm Jun 9 - Jun 30
1946 6:00 am 2:49 pm May 31 - Jun 7
1946 6:00 am 2:47 pm Jul 1 - Jul 1
1946 6:00 am 2:47 pm Jun 18 - Jun 18
1946 6:00 am 2:47 pm Jun 25 - Jun 25
1946 6:00 am 2:49 pm Jun 3 - Jun 3
1946 6:00 am 2:49 pm Jun 6 - Jun 6
1946 6:00 am 2:47 pm Jun 10 - Jun 27
1946 6:07 am 2:56 pm Jun 5 - Jun 5
1946 6:08 am 2:57 pm Jun 8 - Jun 8
1946 6:35 am 3:24 pm Jun 1 - Jun 1
768 8:00 am 4:35 pm Jun 9 - Jun 30
768 8:05 am 4:47 pm May 21 - Jun 8
768 8:10 am 4:45 pm Jul 1 - Jul 9
242 10:40 am 7:28 pm Jun 10 - Jun 10
242 10:40 am 7:28 pm Jun 9 - Jun 16
242 10:40 am 7:28 pm Jun 17 - Jun 30
242 11:00 am 7:48 pm Jun 11 - Jun 25
242 11:00 am 7:48 pm Jun 12 - Jun 26
788 11:00 am 7:49 pm Jun 3 - Jun 3
788 11:00 am 7:49 pm Jun 4 - Jun 4
788 11:00 am 7:49 pm Jun 7 - Jun 7
788 11:00 am 7:49 pm Jun 1 - Jun 8
788 11:00 am 7:49 pm May 31 - May 31
788 11:00 am 7:49 pm Jun 2 - Jun 6
500 11:03 am 7:52 pm Jun 5 - Jun 5
788 11:10 am 7:58 pm Jul 1 - Jul 8
242 1:40 pm 10:28 pm Jul 1 - Jul 29
242 2:30 pm 11:15 pm Jun 8 - Jun 8
242 2:30 pm 11:18 pm May 22 - Jun 7
514 2:30 pm 11:05 pm Jun 9 - Jun 9
708 2:30 pm 11:05 pm Jun 10 - Jun 30
708 2:30 pm 11:05 pm Jun 11 - Jun 25
708 2:30 pm 11:12 pm Jun 14 - Jun 28
242 2:35 pm 11:23 pm May 21 - Jun 4
708 2:40 pm 11:15 pm Jun 12 - Jun 26
708 3:04 pm 11:55 pm Jun 3 - Jun 3
708 3:04 pm 11:55 pm Jun 2 - Jun 2
708 3:04 pm 11:55 pm Jun 6 - Jun 6
1004 3:14 pm 12:07 am Jun 1 - Jun 1
708 3:14 pm 12:07 am Jun 7 - Jun 7
708 3:14 pm 12:07 am Jun 8 - Jun 8
708 3:14 pm 12:07 am May 31 - May 31
1004 3:30 pm 12:23 am Jun 5 - Jun 5
333 4:04 pm 12:49 am Jul 1 - Aug 12
444 4:45 pm 1:27 am Jun 10 - Jun 17
444 4:45 pm 1:27 am Jun 9 - Jun 16
444 4:45 pm 1:27 am Jun 15 - Jun 29
72 4:45 pm 1:27 am Jun 23 - Jun 30
72 4:45 pm 1:27 am Jun 14 - Jun 21
444 4:55 pm 1:39 am Jun 11 - Jun 25
444 4:55 pm 1:37 am Jun 12 - Jun 26
444 5:24 pm 2:10 am May 27 - Jun 3
444 5:24 pm 2:10 am Jun 2 - Jun 6
444 5:24 pm 2:10 am Jun 5 - Jun 5
2013 8:56 pm 5:42 am Jun 24 - Jun 30
2013 8:56 pm 5:42 am Jun 9 - Jun 21
2013 8:56 pm 5:42 am Jun 15 - Jun 22
2013 8:56 pm 5:42 am Jun 23 - Jun 29
2013 9:04 pm 5:50 am Jul 1 - Jul 8
2013 9:17 pm 5:58 am Jun 11 - Jun 25
1740 9:35 pm 6:17 am Jun 12 - Jun 26
1740 9:49 pm 6:31 am Jun 9 - Jun 29
1740 9:55 pm 6:39 am Jun 18 - Jun 25
1740 9:55 pm 6:37 am Jun 11 - Jun 11
1740 10:20 pm 6:54 am Jul 1 - Jul 9
2013 10:33 pm 7:07 am May 22 - Jun 8
380 10:40 pm 7:25 am Jun 11 - Jun 25
1740 10:47 pm 7:32 am Jun 30 - Jun 30
380 10:50 pm 7:35 am Jun 12 - Jun 26
380 10:50 pm 7:35 am Jun 13 - Jun 27
380 10:50 pm 7:35 am Jun 9 - Jun 9
380 10:50 pm 7:35 am Jun 15 - Jun 29
380 10:50 pm 7:35 am Jun 10 - Jun 24
380 10:50 pm 7:35 am Jun 30 - Jun 30
380 10:50 pm 7:35 am Jun 28 - Jun 28
1740 11:08 pm 7:54 am May 31 - Jun 8
1740 11:08 pm 7:54 am May 29 - Jun 4
1740 11:08 pm 7:49 am May 27 - Jun 3
380 11:20 pm 7:54 am Jul 1 - Jul 1
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

Here's why:

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

We aggregate tons 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 don'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.

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.

Airports
Origin

San Francisco
$344
Destination

Boston
$344