San Francisco to Boston
SFOBOS
Fly from San Francisco to Boston starting at USD 155 with F9.
Best fare available on May 10, 2026.
Limited seats. Better plans. Book before it's gone.
San Francisco to Boston cheapest flights this week
24 Apr
F9
22:38SFO
--:--BOS
1 Stop$215VIEW DEAL
25 Apr
F9
06:00SFO
--:--BOS
2 Stop$330VIEW DEAL
2 May
B6
20:25SFO
--:--BOS
Direct$165VIEW DEAL
7 May
UA
16:15SFO
--:--BOS
Direct$199VIEW DEAL
8 May
B6
11:20SFO
--:--BOS
Direct$179VIEW DEAL
10 May
F9
22:15SFO
--:--BOS
2 Stop$155VIEW DEAL
17 May
UA
23:20SFO
--:--BOS
Direct$173VIEW DEAL
28 May
UA
08:10SFO
--:--BOS
Direct$175VIEW DEAL
29 May
B6
12:03SFO
--:--BOS
Direct$167VIEW DEAL
25 Jun
F9
20:51SFO
--:--BOS
2 Stop$218VIEW DEAL
San Francisco to Boston monthly flight fare trend
Apr
from USD 215
May
from USD 155
Jun
from USD 218
Jul
from USD 154
Aug
No flights
Sep
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
