Cheapest flights from Boston to San Francisco
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Boston to San Francisco. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
Cheapest one way flight
$91
Alaska Airlines
Direct flight
6h 47m
04/30/2025
The cheapest one-way flight from Boston to San Francisco departs on 04/30/2025, is operated by Alaska Airlines and costs $91
Cheapest round trip flight
$186
Alaska Airlines
Direct flight
12h 36m
05/06/2025
The cheapest roundtrip flight from Boston to San Francisco departs on 05/06/2025, is operated by Alaska Airlines and costs $186
The fastest flight
6h 33m
Fastest flight from Boston to San Francisco takes 6h 33m
Direct flights
Several times a week
There are direct flights on this route 5 days a week: Tu, We, Th, Fr, and Sa
Earliest flight
6:00 AM
Latest flight
7:45 PM
Direct flights count
60
Distance
4333km
Timezone difference
3h
The distance between Boston and San Francisco is 4333km (2686 miles). There are 60 direct flights from Boston to San Francisco. The time difference between Boston and San Francisco is 3h . Flights from Boston begin at 6:00 AM. The latest flight from Boston departs at 7:45 PM.
