Fly from
Fly to
Route
Depart
Return
Price
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Wed 18/2
1:00 p.m.-9:35 p.m.
Nonstop5h 35m
Boston Logan Intl
Thu 19/2
7:45 a.m.-11:47 a.m.
Nonstop7h 02m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Mon 23/2
11:20 p.m.-7:58 a.m.
Nonstop5h 38m
Boston Logan Intl
Sat 28/2
5:50 p.m.-9:50 p.m.
Nonstop7h 00m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Tue 31/3
3:10 p.m.-11:58 p.m.
Nonstop5h 48m
Boston Logan Intl
Tue 7/4
3:05 p.m.-9:30 p.m.
1 stop9h 25m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Wed 1/4
3:10 p.m.-11:58 p.m.
Nonstop5h 48m
Boston Logan Intl
Wed 8/4
9:15 p.m.-12:56 a.m.
Nonstop6h 41m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Tue 31/3
7:25 a.m.-4:00 p.m.
Nonstop5h 35m
Boston Logan Intl
Tue 7/4
7:40 a.m.-11:38 a.m.
Nonstop6h 58m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Wed 1/4
3:10 p.m.-11:58 p.m.
Nonstop5h 48m
Boston Logan Intl
Mon 6/4
7:00 p.m.-10:42 p.m.
Nonstop6h 42m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Tue 31/3
8:15 p.m.-4:57 a.m.
Nonstop5h 42m
Boston Logan Intl
Mon 6/4
9:15 p.m.-12:56 a.m.
Nonstop6h 41m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Thu 26/2
4:10 p.m.-12:49 a.m.
Nonstop5h 39m
Boston Logan Intl
Mon 9/3
7:34 p.m.-1:28 a.m.
1 stop8h 54m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Tue 17/3
11:59 p.m.-11:17 a.m.
1 stop8h 18m
Boston Logan Intl
Mon 23/3
8:59 p.m.-12:51 a.m.
Nonstop6h 52m
San FranciscoBoston
SFO - BOS
SFOBOS
San Francisco
Tue 17/3
11:34 a.m.-11:59 p.m.
1 stop9h 25m
Boston Logan Intl
Tue 24/3
7:15 a.m.-4:40 p.m.
1 stop12h 25m
Booking 69 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, December is the cheapest month in which you can book a flight from San Francisco to Boston (average of C$ 162). Flying from San Francisco to Boston in June is currently the most expensive (average of C$ 285). 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 15% 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 10% 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.
Of course! You can now track prices for flights from San Francisco to Boston and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.