Cheap flights from Boston to San Francisco

Depart
Return
Any month
Compare vs momondo |

Boston to San Francisco flight comparison made easy

Below you can see the best fares for your route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Boston to San Francisco by changing tabs
Quickest
Cheapest
Frontier
Frontier
05 Nov
BOS
01:00
Boston Logan Intl airport
9h 09m
1 Stop
07:09
SFO
San Francisco airport
Frontier
10 Nov
SFO
23:20
San Francisco airport
5h 40m
08:00
+1
BOS
Boston Logan Intl airport
186 GBP
Alaska Airlines
Alaska Airlines
11 Dec
BOS
12:05
Boston Logan Intl airport
6h 55m
16:00
SFO
San Francisco airport
Alaska Airlines
15 Dec
SFO
14:00
San Francisco airport
5h 31m
22:31
BOS
Boston Logan Intl airport
188 GBP
JetBlue
JetBlue
08 Nov
BOS
16:26
Boston Logan Intl airport
6h 44m
20:10
SFO
San Francisco airport
JetBlue
10 Nov
SFO
23:20
San Francisco airport
5h 40m
08:00
+1
BOS
Boston Logan Intl airport
189 GBP
Alaska Airlines
Alaska Airlines
31 Oct
BOS
04:20
Boston Logan Intl airport
6h 45m
08:05
SFO
San Francisco airport
Alaska Airlines
03 Nov
SFO
13:00
San Francisco airport
5h 30m
21:30
BOS
Boston Logan Intl airport
307 GBP
JetBlue
JetBlue
03 Nov
BOS
01:40
Boston Logan Intl airport
6h 46m
04:26
SFO
San Francisco airport
JetBlue
08 Nov
SFO
07:14
San Francisco airport
5h 34m
15:48
BOS
Boston Logan Intl airport
241 GBP
JetBlue
JetBlue
08 Nov
BOS
16:26
Boston Logan Intl airport
6h 44m
20:10
SFO
San Francisco airport
JetBlue
10 Nov
SFO
23:20
San Francisco airport
5h 40m
08:00
+1
BOS
Boston Logan Intl airport
189 GBP

How to get the cheapest flight from Boston to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight for your trip
What is the cheapest month to fly to San Francisco?
September
The cheapest time of year to fly to San Francisco from Boston is September. The most expensive is July.
What is the cheapest day to fly to San Francisco?
Tuesday
The cheapest day of the week is usually Tuesday. The most expensive is usually Saturday.
When is the cheapest time to fly to San Francisco?
at midday
Boston to San Francisco flights are approximately 80% more expensive in the afternoon than at midday
What is the cheapest airline that flies to San Francisco?
American Airlines
American Airlines, Alaska Airlines, and United Airlines are the most popular carriers operating from Boston to San Francisco
What is the cheapest route?
Boston Logan Intl - San Francisco
Fly from Boston Logan Intl to San Francisco for the best Boston - San Francisco flight prices
BOS
Boston Logan Intl
SFO
San Francisco
When is the cheapest time to book a flight to San Francisco?
60 days before
The cheapest time to buy a flight from Boston to San Francisco is approximately 60 days before departure
60
Days before departure
0

Flight information for Boston to San Francisco

Find info about flight duration, direct flights, and airports for your flight from Boston to San Francisco
Fastest flight time 6h 25m The fastest flight from Boston to San Francisco takes 6h 25m.
Direct flights Every day Direct flights go from Boston to San Francisco every day.
Airports in San Francisco 1 airport There is 1 airport near San Francisco: San Francisco (SFO)