jetBlueDepart06:11
Tue, Feb 2BOS → SFO
8h 31m · 1 stop
$102one way, per person
View deal
- Cheapest fare
- $102
- Cheapest month
- February
- Direct flights
- Yes
- Flight time
- 6h 30m
jetBlue · Tue, Feb 2
from $102
jetBlue
4,330 km
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Cheapest month to fly from Boston to San Francisco
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in February 2027
The lowest fares we've seen for each day, cheapest first.
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About flights from Boston to San Francisco
Boston (BOS) and San Francisco (SFO) are about 4,330 km apart. Direct flights take around 6h 30m, and recent direct fares were with jetBlue. Over the next few months, one-way fares start from $102, and February 2027 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Boston to San Francisco?
The cheapest one-way fare we've seen recently is $102 with jetBlue, departing Tuesday, February 2, 2027. Over the coming months, the lowest fare in each month ranges from $102 to $279.
What is the cheapest month to fly from Boston to San Francisco?
February 2027 currently has the lowest fares, from $102 one way.
Are there direct flights from Boston to San Francisco?
Yes. Recent direct fares were with jetBlue.
How long is the flight from Boston to San Francisco?
A direct flight takes about 6h 30m. Boston and San Francisco are around 4,330 km apart.
Which airlines fly from Boston to San Francisco?
Recent fares on this route were with jetBlue and Alaska Airlines.
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