San Francisco to Boston
SFOBOS
Fly from San Francisco to Boston starting at USD 154 with B6.
Best fare available on Jul 8, 2026.
Limited seats. Better plans. Book before it's gone.
San Francisco to Boston cheapest flights this week
10 May
F9
22:15SFO
08:33BOS
2 Stop$155VIEW DEAL
17 May
UA
23:20SFO
05:23BOS
Direct$173VIEW DEAL
28 May
UA
08:10SFO
14:04BOS
Direct$175VIEW DEAL
29 May
B6
12:03SFO
17:50BOS
Direct$167VIEW DEAL
25 Jun
F9
20:51SFO
22:27BOS
2 Stop$218VIEW DEAL
8 Jul
B6
11:26SFO
17:16BOS
Direct$154VIEW DEAL
9 Jul
UA
08:10SFO
14:04BOS
Direct$158VIEW DEAL
10 Jul
B6
23:44SFO
05:26BOS
Direct$183VIEW DEAL
27 Jul
B6
22:17SFO
04:00BOS
Direct$169VIEW DEAL
San Francisco to Boston monthly flight fare trend
May
from USD 155
Jun
from USD 218
Jul
from USD 154
Aug
No flights
Sep
No flights
Oct
No flights
Airport Details
Origin
San Francisco
San Francisco International Airport (SFO)
San Francisco, SFO
Zone
Los Angeles
Elev
13 ft
Destination
Boston
Logan International Airport (BOS)
Boston, BOS
Zone
New York
Elev
20 ft
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