SEARCH ONE AND DONE. - Compare hundreds of travel sites at once.
Choose where to book.
Find deals from over 400 airlines worldwide.

Cheap Flights from San Francisco to Boston (SFO - BOS)

DepartReturn
1 adult
Note: some airlines charge for infants in laps.
The price shown for each flight will be the average for all passengers including any infants.

Best fares from SFO to BOS (Found by others)

Sun Mon Tue Wed Thu Fri Sat
          1 $396 2 $392
3 $364 4 $344 5 $342 6 $344 7 $374 8 $548 9 $491
10 $424 11 $344 12 $344 13 $392 14 $402 15 $424 16 $432
17 $414 18 $402 19 $363 20 $416 21 $384 22 $430 23 $430
24 $424 25 $384 26 $371 27 $395 28 $487 29 $528 30 $385
31 $430            
KAYAK searches hundreds of sites to find the best rate for your next flight from San Francisco to Boston. Get the best flight deal for your Boston trip!
Here's how it works. Search KAYAK for a flight ticket from San Francisco to Boston. Sort, filter and compare results on one web page. Then book your plane ticket direct on the airline or travel agent site of your choice!
Direct flights SFO to BOS on United
Flight # Depart SFO Arrive BOS Sun Mon Tue Wed Thu Fri Sat Valid Between
1057 6:00 am 2:29 pm Aug 29 - Sep 5
1057 6:00 am 2:35 pm Aug 28 - Aug 31
1057 6:00 am 2:29 pm Aug 19 - Aug 27
1523 6:00 am 2:44 pm Jul 27 - Aug 17
1620 6:00 am 2:44 pm Aug 16 - Aug 16
1620 6:00 am 2:44 pm Aug 2 - Aug 9
242 6:00 am 2:38 pm Aug 6 - Aug 6
245 6:00 am 2:38 pm Aug 13 - Aug 13
255 6:00 am 2:38 pm Aug 5 - Aug 5
444 6:00 am 2:38 pm Aug 12 - Aug 12
444 6:00 am 2:38 pm Aug 1 - Aug 15
676 6:00 am 2:38 pm Aug 4 - Aug 18
676 6:00 am 2:38 pm Aug 7 - Aug 14
1725 8:10 am 4:58 pm Aug 5 - Aug 5
1728 8:10 am 4:58 pm Aug 12 - Aug 12
1728 8:10 am 4:58 pm Aug 13 - Aug 13
1752 8:10 am 4:58 pm Aug 1 - Aug 8
1752 8:10 am 4:58 pm Aug 3 - Aug 7
1752 8:10 am 4:58 pm Aug 10 - Aug 18
1752 8:10 am 4:58 pm Aug 14 - Aug 14
1422 8:25 am 4:54 pm Sep 4 - Sep 4
1422 8:25 am 4:54 pm Aug 25 - Aug 25
1422 8:25 am 4:54 pm Aug 21 - Aug 28
1582 8:25 am 4:54 pm Sep 5 - Sep 5
1679 8:25 am 4:54 pm Aug 22 - Aug 29
1679 8:25 am 4:54 pm Sep 1 - Sep 1
1752 8:25 am 4:54 pm Aug 26 - Aug 26
1752 8:25 am 5:00 pm Aug 31 - Aug 31
1752 8:25 am 4:54 pm Aug 30 - Sep 13
1752 8:25 am 4:54 pm Aug 19 - Aug 24
1752 8:25 am 5:00 pm Aug 20 - Aug 27
1752 8:25 am 4:54 pm Sep 2 - Sep 2
768 8:25 am 4:54 pm Sep 3 - Sep 17
1168 8:27 am 5:15 pm Aug 9 - Aug 9
1168 8:27 am 5:15 pm Aug 16 - Aug 16
1620 9:50 am 6:35 pm Aug 31 - Aug 31
1422 10:55 am 7:40 pm Sep 5 - Sep 5
1728 10:55 am 7:40 pm Sep 4 - Sep 4
788 10:55 am 7:38 pm Sep 3 - Sep 3
788 10:59 am 7:42 pm Sep 1 - Sep 8
1422 11:00 am 7:45 pm Aug 29 - Aug 29
1422 11:00 am 7:45 pm Aug 24 - Aug 24
1422 11:00 am 7:45 pm Aug 23 - Aug 23
1422 11:00 am 7:45 pm Aug 26 - Aug 26
1422 11:00 am 7:45 pm Aug 19 - Aug 19
1582 11:00 am 7:45 pm Aug 30 - Aug 30
1728 11:00 am 7:45 pm Aug 25 - Aug 25
1749 11:00 am 7:45 pm Aug 21 - Aug 21
449 11:00 am 7:40 pm Sep 2 - Sep 2
662 11:00 am 7:40 pm Aug 22 - Aug 22
788 11:00 am 7:43 pm Aug 28 - Aug 28
788 11:00 am 7:43 pm Aug 20 - Aug 27
788 11:38 am 8:22 pm Aug 3 - Aug 17
1057 11:49 am 8:33 pm Aug 14 - Aug 14
1149 11:49 am 8:33 pm Aug 18 - Aug 18
1184 11:49 am 8:33 pm Aug 11 - Aug 11
1184 11:49 am 8:33 pm Aug 4 - Aug 7
1620 11:49 am 8:33 pm Aug 8 - Aug 15
1674 11:49 am 8:33 pm Aug 5 - Aug 12
788 11:56 am 8:40 pm Aug 6 - Aug 13
1188 11:57 am 8:41 pm Jul 26 - Aug 16
242 1:40 pm 10:28 pm Aug 5 - Aug 5
1252 1:50 pm 10:32 pm Sep 2 - Sep 2
1615 1:50 pm 10:32 pm Aug 21 - Aug 21
1731 1:50 pm 10:32 pm Aug 30 - Aug 30
1752 1:50 pm 10:32 pm Aug 22 - Aug 22
1752 1:50 pm 10:32 pm Sep 5 - Sep 5
1752 1:50 pm 10:32 pm Aug 28 - Aug 28
242 1:50 pm 10:30 pm Sep 4 - Sep 4
1152 1:52 pm 10:43 pm Aug 10 - Aug 10
1245 1:52 pm 10:43 pm Aug 13 - Aug 13
1245 1:52 pm 10:43 pm Aug 6 - Aug 6
242 1:52 pm 10:41 pm Aug 7 - Aug 18
242 1:52 pm 10:41 pm Aug 1 - Aug 8
242 1:52 pm 10:41 pm Aug 12 - Aug 15
508 1:54 pm 10:40 pm Aug 17 - Aug 17
1752 1:58 pm 10:49 pm Aug 9 - Aug 16
1539 2:00 pm 10:42 pm Aug 24 - Aug 24
1611 2:00 pm 10:42 pm Sep 1 - Sep 1
1611 2:00 pm 10:42 pm Aug 25 - Aug 25
1611 2:00 pm 10:42 pm Aug 29 - Aug 29
1704 2:00 pm 10:42 pm Aug 20 - Aug 20
1704 2:00 pm 10:42 pm Aug 27 - Aug 27
1704 2:00 pm 10:42 pm Sep 3 - Sep 3
1704 2:00 pm 10:42 pm Aug 31 - Aug 31
242 2:00 pm 10:40 pm Aug 19 - Aug 26
174 2:30 pm 11:12 pm Aug 23 - Aug 23
286 3:06 pm 11:44 pm Aug 10 - Aug 10
1752 3:19 pm 12:03 am Aug 12 - Aug 12
242 3:19 pm 11:57 pm Aug 13 - Aug 13
286 3:19 pm 11:57 pm Aug 11 - Aug 18
286 3:19 pm 11:57 pm Aug 1 - Aug 8
444 3:19 pm 12:03 am Aug 5 - Aug 5
72 3:29 pm 12:11 am Aug 29 - Aug 29
72 3:30 pm 12:07 am Aug 28 - Aug 28
72 3:30 pm 12:12 am Aug 25 - Aug 25
72 3:30 pm 12:12 am Aug 27 - Aug 27
72 3:30 pm 12:12 am Sep 1 - Sep 9
72 3:30 pm 12:12 am Aug 19 - Aug 26
72 3:35 pm 12:17 am Aug 24 - Aug 24
72 3:35 pm 12:17 am Aug 31 - Aug 31
1516 4:00 pm 12:42 am Sep 3 - Sep 3
72 4:00 pm 12:42 am Sep 4 - Sep 5
72 4:15 pm 12:59 am Jul 26 - Aug 16
444 4:40 pm 1:19 am Aug 6 - Aug 6
444 4:40 pm 1:19 am Aug 13 - Aug 13
72 4:40 pm 1:24 am Aug 5 - Aug 5
72 4:40 pm 1:24 am Aug 18 - Aug 18
72 4:40 pm 1:24 am Aug 11 - Aug 14
72 4:40 pm 1:24 am Aug 7 - Aug 7
72 4:40 pm 1:24 am Aug 8 - Aug 12
768 4:40 pm 1:19 am Aug 15 - Aug 15
1168 5:00 pm 1:47 am Aug 25 - Aug 25
1209 5:00 pm 1:47 am Aug 22 - Aug 22
1263 5:00 pm 1:47 am Sep 2 - Sep 2
1640 5:00 pm 1:47 am Aug 26 - Aug 26
1663 5:00 pm 1:47 am Aug 20 - Aug 20
1663 5:00 pm 1:47 am Aug 21 - Aug 21
1670 5:00 pm 1:47 am Sep 1 - Sep 1
1733 5:00 pm 1:47 am Aug 27 - Aug 29
1749 5:00 pm 1:47 am Aug 19 - Aug 19
1627 5:01 pm 1:48 am Aug 24 - Aug 24
1615 5:02 pm 1:49 am Aug 28 - Aug 28
768 5:08 pm 1:47 am Aug 3 - Aug 17
1177 8:48 pm 5:34 am Jul 26 - Aug 16
408 8:52 pm 5:31 am Aug 3 - Aug 17
1168 8:53 pm 5:35 am Aug 30 - Aug 30
408 8:53 pm 5:39 am Aug 6 - Aug 13
408 8:53 pm 5:32 am Aug 1 - Aug 18
1168 8:55 pm 5:37 am Aug 23 - Aug 23
1438 8:56 pm 5:38 am Sep 2 - Sep 2
1168 8:57 pm 5:39 am Sep 3 - Sep 3
1168 8:57 pm 5:39 am Aug 31 - Aug 31
1168 8:59 pm 5:41 am Aug 20 - Aug 27
1168 8:59 pm 5:41 am Aug 24 - Aug 24
1168 9:00 pm 5:42 am Aug 28 - Aug 29
1168 9:00 pm 5:42 am Aug 21 - Aug 22
1168 9:00 pm 5:42 am Sep 5 - Sep 19
1168 9:25 pm 6:07 am Sep 4 - Sep 4
1118 10:30 pm 7:20 am Aug 16 - Aug 16
1263 10:30 pm 7:05 am Aug 28 - Aug 28
1263 10:30 pm 6:59 am Aug 31 - Aug 31
1263 10:30 pm 6:59 am Aug 29 - Sep 1
1263 10:30 pm 6:59 am Aug 21 - Aug 25
1263 10:30 pm 7:05 am Sep 4 - Sep 4
1438 10:30 pm 6:59 am Sep 5 - Sep 5
1575 10:30 pm 7:05 am Aug 20 - Aug 27
1575 10:30 pm 7:05 am Sep 2 - Sep 2
1575 10:30 pm 6:59 am Aug 19 - Aug 26
1575 10:30 pm 6:59 am Aug 23 - Aug 23
1575 10:30 pm 7:05 am Aug 30 - Aug 30
770 10:30 pm 7:20 am Aug 2 - Aug 9
995 10:30 pm 6:59 am Sep 3 - Sep 3
1263 10:35 pm 7:25 am Aug 10 - Aug 17
770 10:35 pm 7:19 am Aug 1 - Aug 18
995 10:35 pm 7:19 am Aug 6 - Aug 13
770 10:44 pm 7:34 am Aug 5 - Aug 12