Boston to San Francisco

BOSSFO

Fly from Boston to San Francisco starting at USD 196 with Southwest Airlines.Best fare available on Aug 6, 2026.Limited seats. Better plans. Book before it's gone.

Boston to San Francisco cheapest flights this week

1 Aug
JetBlue Airways
08:15BOS
22:52SFO
1 StopUSD 226VIEW DEAL
1 Aug
Southwest Airlines
21:00BOS
15:00SFO
2 StopUSD 264VIEW DEAL
1 Aug
Southwest Airlines
05:50BOS
17:45SFO
2 StopUSD 224VIEW DEAL
1 Aug
United Airlines
06:00BOS
12:27SFO
DirectUSD 262VIEW DEAL
3 Aug
Frontier Airlines
11:59BOS
22:18SFO
1 StopUSD 215VIEW DEAL
3 Aug
United Airlines
06:00BOS
12:27SFO
DirectUSD 293VIEW DEAL
4 Aug
Southwest Airlines
05:25BOS
14:35SFO
1 StopUSD 203VIEW DEAL
5 Aug
Southwest Airlines
07:30BOS
19:00SFO
2 StopUSD 198VIEW DEAL
5 Aug
Frontier Airlines
11:59BOS
22:13SFO
1 StopUSD 250VIEW DEAL
6 Aug
Southwest Airlines
08:40BOS
20:35SFO
1 StopUSD 196VIEW DEAL

Boston to San Francisco monthly flight fare trend

Aug
from USD 125
Sep
from USD 126
Oct
from USD 134
Nov
from USD 141
Dec
No flights
Jan
No flights

Airport Details

Origin

Boston

Logan International Airport (BOS)

Boston, BOS
Zone

New York

Elev

20 ft

Destination

San Francisco

San Francisco International Airport (SFO)

San Francisco, SFO
Zone

Los Angeles

Elev

13 ft

Flights from Boston

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