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Good to know
Low season:
February
Best time to beat the crowds
1%
expected price decrease
High season:
November
Most popular time to fly
4%
expected price increase
Average price:
£255
(price for this month)
Good deal:
£235
or less return trip within
2 months
of travel is a good deal
When to Book Flights from Boston to San Francisco
Average price per month
Flight prices as travel date approaches
-1 day
-2 days
Top tips for finding a cheap flight
The cheapest flight from Boston to San Francisco was found, on average, 31 days before departure.
Book at least 1 week before departure in order to get a below-average price.
On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days
Boston - San Francisco Flights
Browse origins:
- Flights »
- Boston Logan Intl:
£213
Boston Logan Intl
Browse destinations:
- Flights »
- San Francisco:
£213
San Francisco