Fly from
Fly to
Route
Depart
Return
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Mon 31/8
10:57 a.m.-12:19 a.m.
1 stop10h 22m
Boston Logan Intl
Wed 9/9
1:00 p.m.-9:28 p.m.
1 stop11h 28m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Wed 26/8
11:15 a.m.-12:25 a.m.
1 stop10h 10m
Boston Logan Intl
Mon 31/8
5:00 a.m.-10:35 a.m.
1 stop8h 35m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Sun 21/6
7:00 a.m.-3:54 p.m.
Nonstop5h 54m
Boston Logan Intl
Tue 30/6
9:07 a.m.-12:34 p.m.
Nonstop6h 27m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Fri 16/10
9:40 p.m.-10:00 a.m.
1 stop9h 20m
Boston Logan Intl
Sun 18/10
8:20 a.m.-2:20 p.m.
1 stop9h 00m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Fri 14/8
8:30 a.m.-10:10 p.m.
2 stops10h 40m
Boston Logan Intl
Mon 17/8
3:55 p.m.-12:05 a.m.
1 stop11h 10m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Sat 4/7
9:10 a.m.-11:00 p.m.
1 stop10h 50m
Boston Logan Intl
Sat 11/7
2:10 p.m.-11:35 p.m.
1 stop12h 25m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Sat 12/9
9:10 p.m.-6:02 a.m.
Nonstop5h 52m
Boston Logan Intl
Sat 19/9
6:50 p.m.-12:30 a.m.
1 stop8h 40m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Thu 2/7
3:19 p.m.-11:59 p.m.
Nonstop5h 40m
Boston Logan Intl
Sat 11/7
8:55 p.m.-12:30 a.m.
Nonstop6h 35m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Fri 6/11
12:10 p.m.-11:40 p.m.
1 stop8h 30m
Boston Logan Intl
Wed 11/11
5:00 a.m.-1:25 p.m.
2 stops11h 25m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Sun 2/8
6:50 p.m.-8:10 a.m.
2 stops10h 20m
Boston Logan Intl
Tue 11/8
2:45 p.m.-10:05 p.m.
2 stops10h 20m
Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, January is the cheapest month in which you can book a flight from San Francisco to Boston (average of C$ 470). Flying from San Francisco to Boston in June is currently the most expensive (average of C$ 700). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 77% on flights from San Francisco to Boston by exploring options for tickets in the evening.
About 17% of weekly flights between San Francisco and Boston have experienced delays in the past year, with the average delay time being 174 minutes.
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Over the past year, Alaska Airlines has had the lowest number of delays on this route, with just 13% of flights being delayed.
Deals for San Francisco to Boston flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Francisco to Boston for you. Better yet — we are completely free to use.
Yes, we can. To see specific flights from San Francisco to Boston with no change fees, users can toggle flexible booking options after using the search form above to find flights.
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