Cheap flights from Boston to San Francisco from $0
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Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from Boston to San Francisco
Best
1 stop
8 Feb
DEP
07:00
BOS
1×
15:50
SFO
11h 50m
8 Feb
DEPARTURE
07:00 - 15:50
11h 50m
BOS
1 stop
SFO
1 stop
8 Feb
DEP
07:00
BOS
1×
15:50
SFO
11h 50m
8 Feb
DEPARTURE
07:00 - 15:50
11h 50m
BOS
1 stop
SFO
American Airlines flights from Boston to San Francisco
Our best American Airlines deals on Boston to San Francisco tickets
Best
1 stop
8 Feb
DEP
06:05
BOS
1×
12:12
SFO
9h 7m
8 Feb
DEPARTURE
06:05 - 12:12
9h 7m
BOS
1 stop
SFO
1 stop
8 Feb
DEP
06:10
BOS
1×
14:37
SFO
11h 27m
8 Feb
DEPARTURE
06:10 - 14:37
11h 27m
BOS
1 stop
SFO
Alaska Airlines flights from Boston to San Francisco
Our best Alaska Airlines deals on Boston to San Francisco tickets
Best
1 stop
8 Feb
DEP
07:00
BOS
1×
15:50
SFO
11h 50m
8 Feb
DEPARTURE
07:00 - 15:50
11h 50m
BOS
1 stop
SFO
1 stop
8 Feb
DEP
07:00
BOS
1×
15:50
SFO
11h 50m
8 Feb
DEPARTURE
07:00 - 15:50
11h 50m
BOS
1 stop
SFO
Hawaiian Airlines flights from Boston to San Francisco
Our best Hawaiian Airlines deals on Boston to San Francisco tickets
Best
1 stop
8 Feb
DEP
07:00
BOS
1×
15:50
SFO
11h 50m
8 Feb
DEPARTURE
07:00 - 15:50
11h 50m
BOS
1 stop
SFO
1 stop
8 Feb
DEP
07:00
BOS
1×
15:50
SFO
11h 50m
8 Feb
DEPARTURE
07:00 - 15:50
11h 50m
BOS
1 stop
SFO
What's the cheapest day of the week to fly from Boston to San Francisco?
If your flying dates are flexible, you should consider flying to San Francisco on a Sun, as we generally find the cheapest rates on that day. On the other hand, Tue is the most expensive day to fly.
What is the cheapest month to fly from Boston to San Francisco?
The cheapest month for flights from Boston to San Francisco is Sep, where tickets cost $300 on average. The most expensive months are Jul.
JanFebMarAprMayJunJulAugSepOctNovDec
$433$367$300
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Everything you should know
Cheapest one-way flight
$318
Typical prices: $318–$636
When to book
3 weeks
in advance to save around 25%
Good to know
💰
Save money
Compare prices across airlines to find the best deal. Prices can vary significantly.
📅
Be flexible
Flying midweek or in off-peak seasons can save you up to 30% on airfare.
⏰
Book early
Booking 3+ weeks in advance typically offers the best prices.
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Frequently asked questions
The cheapest flight from Boston to San Francisco currently costs AUD $318. Prices typically range from $318 to $318. Prices change frequently, so we recommend booking early and being flexible with your travel dates.