Boston to San Francisco

BOSSFO

Fly from Boston to San Francisco starting at SAR 459 with Southwest Airlines.Best fare available on Sep 9, 2026.Limited seats. Better plans. Book before it's gone.

Boston to San Francisco cheapest flights this week

3 Sept
JetBlue Airways
12:57BOS
22:13SFO
1 StopSAR 481VIEW DEAL
3 Sept
Frontier Airlines
12:45BOS
22:03SFO
1 StopSAR 540VIEW DEAL
4 Sept
JetBlue Airways
16:55BOS
03:38SFO
1 StopSAR 485VIEW DEAL
4 Sept
JetBlue Airways
17:20BOS
23:56SFO
DirectSAR 659VIEW DEAL
4 Sept
Frontier Airlines
12:45BOS
22:56SFO
2 StopSAR 799VIEW DEAL
6 Sept
Frontier Airlines
12:45BOS
22:26SFO
1 StopSAR 466VIEW DEAL
7 Sept
American Airlines
06:00BOS
14:32SFO
1 StopSAR 714VIEW DEAL
9 Sept
Southwest Airlines
15:20BOS
01:10SFO
1 StopSAR 459VIEW DEAL
13 Sept
JetBlue Airways
06:50BOS
13:13SFO
DirectSAR 918VIEW DEAL
15 Sept
JetBlue Airways
05:15BOS
13:39SFO
1 StopSAR 474VIEW DEAL

Boston to San Francisco monthly flight fare trend

Sep
from SAR 459
Oct
from SAR 344
Nov
from SAR 481
Dec
No flights
Jan
No flights
Feb
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

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