Boston to San Francisco

BOSSFO

Fly from Boston to San Francisco starting at SAR 503 with Frontier Airlines.Best fare available on Jul 30, 2026.Limited seats. Better plans. Book before it's gone.

Boston to San Francisco cheapest flights this week

28 Jul
United Airlines
06:00BOS
12:27SFO
DirectSAR 633VIEW DEAL
29 Jul
United Airlines
06:00BOS
12:27SFO
DirectSAR 562VIEW DEAL
30 Jul
Frontier Airlines
09:14BOS
22:13SFO
1 StopSAR 503VIEW DEAL
30 Jul
United Airlines
06:00BOS
12:27SFO
DirectSAR 577VIEW DEAL
31 Jul
United Airlines
06:00BOS
12:27SFO
DirectSAR 662VIEW DEAL
31 Jul
JetBlue Airways
06:35BOS
13:05SFO
DirectSAR 733VIEW DEAL
31 Jul
United Airlines
07:28BOS
13:55SFO
DirectSAR 692VIEW DEAL
1 Aug
JetBlue Airways
08:15BOS
22:52SFO
1 StopSAR 836VIEW DEAL
1 Aug
Southwest Airlines
21:00BOS
15:00SFO
2 StopSAR 977VIEW DEAL
1 Aug
Southwest Airlines
05:50BOS
17:45SFO
2 StopSAR 829VIEW DEAL

Boston to San Francisco monthly flight fare trend

Jul
from SAR 503
Aug
from SAR 463
Sep
from SAR 466
Oct
from SAR 496
Nov
No flights
Dec
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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