San Francisco to Boston

SFOBOS

Fly from San Francisco to Boston starting at SAR 444 with Frontier Airlines.Best fare available on Dec 5, 2026.Limited seats. Better plans. Book before it's gone.

San Francisco to Boston cheapest flights this week

18 Nov
Alaska Airlines
12:13SFO
20:58BOS
1 StopSAR 799VIEW DEAL
20 Nov
JetBlue Airways
06:00SFO
11:31BOS
DirectSAR 1,321VIEW DEAL
21 Nov
Alaska Airlines
16:23SFO
02:24BOS
1 StopSAR 673VIEW DEAL
30 Nov
Frontier Airlines
18:30SFO
02:16BOS
2 StopSAR 847VIEW DEAL
5 Dec
Frontier Airlines
16:28SFO
04:39BOS
2 StopSAR 444VIEW DEAL
7 Dec
Alaska Airlines
10:40SFO
20:59BOS
1 StopSAR 592VIEW DEAL
8 Dec
Frontier Airlines
16:28SFO
02:58BOS
1 StopSAR 588VIEW DEAL
8 Dec
Southwest Airlines
13:20SFO
20:40BOS
1 StopSAR 570VIEW DEAL
9 Dec
Alaska Airlines
12:39SFO
20:59BOS
1 StopSAR 592VIEW DEAL
9 Dec
Frontier Airlines
16:28SFO
21:17BOS
2 StopSAR 562VIEW DEAL

San Francisco to Boston monthly flight fare trend

Nov
from SAR 673
Dec
from SAR 444
Jan
No flights
Feb
No flights
Mar
No flights
Apr
from SAR 699

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

Flights from San Francisco

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