Flight INFO & Alaska Airlines(AS) flights from San Francisco to Boston
| Cheapest one-way flight price | US$123 |
|---|---|
| Cheapest return ticket price | US$256 |
| Cheapest month | October |
| Peak season for travel | July |
| Flight distance | 4,342.96 km |
| Average flight time | 5 hours 50 minutes |
| Popular airline | Jetblue Airways |
| Frequency | ～65/week |
Book Alaska Airlines(AS) flights from San Francisco to Boston
- One way
- Round-trip
SFO15:2511h 22m1 stopsBOS05:47San Francisco - Boston|Tue, Sep 22|Alaska AirlinesUS$155US$54271% offSearch71% offUS$542US$155- SFO18:2110h 18m1 stopsBOS07:39San Francisco - Boston|Tue, Sep 15|Alaska AirlinesUS$155US$54271% offSearch71% offUS$542US$155
- SFO16:5111h 48m1 stopsBOS07:39San Francisco - Boston|Wed, Sep 16|Alaska AirlinesUS$155US$54271% offSearch71% offUS$542US$155
- SFO09:4311h 16m1 stopsBOS23:59San Francisco - Boston|Wed, Oct 7|Alaska AirlinesUS$162SearchUS$162
- SFO10:3610h 18m1 stopsBOS23:54San Francisco - Boston|Wed, Sep 30|Alaska AirlinesUS$167SearchUS$167
- SFO15:2511h 22m1 stopsBOS05:47San Francisco - Boston|Sat, Sep 19|Alaska AirlinesUS$176SearchUS$176
- SFO07:0819h 39m1 stopsBOS05:47San Francisco - Boston|Tue, Sep 29|Alaska AirlinesUS$176SearchUS$176
- SFO15:2511h 22m1 stopsBOS05:47San Francisco - Boston|Sat, Sep 12|Alaska AirlinesUS$177SearchUS$177
- SFO07:0819h 39m1 stopsBOS05:47San Francisco - Boston|Mon, Sep 21|Alaska AirlinesUS$178SearchUS$178
- SFO16:5111h 48m1 stopsBOS07:39San Francisco - Boston|Sun, Sep 27|Alaska AirlinesUS$188SearchUS$188
- SFO16:5111h 48m1 stopsBOS07:39San Francisco - Boston|Sun, Sep 20|Alaska AirlinesUS$190SearchUS$190
- SFO15:3110h 50m1 stopsBOS05:21San Francisco - Boston|Tue, Oct 6|Alaska AirlinesUS$190SearchUS$190
- SFO17:4510h 41m1 stopsBOS07:26San Francisco - Boston|Sun, Oct 4|Alaska AirlinesUS$195SearchUS$195
- SFO21:1329h 34m1 stopsBOS05:47San Francisco - Boston|Thu, Sep 10|Alaska AirlinesUS$203SearchUS$203
- SFO18:588h 11m1 stopsBOS06:09San Francisco - Boston|Thu, Sep 17|Alaska AirlinesUS$210SearchUS$210
- SFO21:1329h 34m1 stopsBOS05:47San Francisco - Boston|Sun, Sep 13|Alaska AirlinesUS$216SearchUS$216
- SFO17:169h 31m1 stopsBOS05:47San Francisco - Boston|Sat, Sep 26|Alaska AirlinesUS$229SearchUS$229
- SFO15:2511h 24m1 stopsBOS05:49San Francisco - Boston|Sat, Oct 3|Alaska AirlinesUS$230SearchUS$230
- SFO18:588h 11m1 stopsBOS06:09San Francisco - Boston|Wed, Sep 23|Alaska AirlinesUS$258SearchUS$258
- SFO07:0819h 39m1 stopsBOS05:47San Francisco - Boston|Fri, Sep 18|Alaska AirlinesUS$272SearchUS$272
- SFO16:439h 38m1 stopsBOS05:21San Francisco - Boston|Mon, Oct 5|Alaska AirlinesUS$285SearchUS$285
- SFO07:0819h 39m1 stopsBOS05:47San Francisco - Boston|Fri, Sep 25|Alaska AirlinesUS$309SearchUS$309
- SFO15:2511h 22m1 stopsBOS05:47San Francisco - Boston|Fri, Sep 11|Alaska AirlinesUS$347SearchUS$347
- SFO15:2511h 22m1 stopsBOS05:47San Francisco - Boston|Mon, Sep 14|Alaska AirlinesUS$375SearchUS$375
- SFO16:5111h 48m1 stopsBOS07:39San Francisco - Boston|Wed, Sep 9|Alaska AirlinesUS$383SearchUS$383
- SFO18:598h 10m1 stopsBOS06:09San Francisco - Boston|Tue, Sep 8|Alaska AirlinesUS$427SearchUS$427
- SFO17:169h 33m1 stopsBOS05:49San Francisco - Boston|Fri, Oct 2|Alaska AirlinesUS$428SearchUS$428
SFO13:009h 33mNonstopBOS14:00San Francisco - Boston|Mon, Sep 6|Normal AirlineMore cheap flightsMore cheap flights
Alaska Airlines(AS) flights from San Francisco to Boston & Flight Schedule
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AS1327
Alaska Airlines
19:59
SFO
22:13
SEA
S M T W T F SSearch -
AS536
Alaska Airlines
23:40
SEA
08:02
BOS
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AS591
Alaska Airlines
16:44
SFO
18:56
SEA
S M T W T F SSearch -
AS214
Alaska Airlines
23:06
SEA
07:39
BOS
S M T W T F SSearch -
AS758
Alaska Airlines
18:21
SFO
20:32
SEA
S M T W T F SSearch -
AS214
Alaska Airlines
23:06
SEA
07:39
BOS
S M T W T F SSearch -
AS656
Alaska Airlines
10:36
SFO
12:51
SEA
S M T W T - SSearch -
AS460
Alaska Airlines
15:40
SEA
23:59
BOS
S M T W T F SSearch -
AS580
Alaska Airlines
06:00
SFO
08:08
SEA
S M T W T F SSearch -
AS460
Alaska Airlines
15:40
SEA
23:59
BOS
S M T W T F SSearch -
AS1327
Alaska Airlines
19:59
SFO
22:13
SEA
S M T W T F SSearch -
AS460
Alaska Airlines
15:40
SEA
23:59
BOS
S M T W T F SSearch -
AS3099
Alaska Airlines
15:25
SFO
17:10
SAN
S M T W T F SSearch -
AS255
Alaska Airlines
20:59
SAN
05:47
BOS
S - - W T - SSearch -
AS630
Alaska Airlines
15:26
SFO
17:39
SEA
S M T W T F SSearch -
AS214
Alaska Airlines
23:06
SEA
07:39
BOS
S M T W T F SSearch -
AS1340
Alaska Airlines
16:46
SFO
19:02
SEA
S M T W T F SSearch -
AS214
Alaska Airlines
23:06
SEA
07:39
BOS
S M T W T F SSearch -
AS426
Alaska Airlines
07:08
SFO
08:48
SAN
S M T W T F SSearch -
AS255
Alaska Airlines
20:59
SAN
05:47
BOS
S - - W T - SSearch
Alaska Airlines(AS) flights from San Francisco to Boston Flight Booking FAQ
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Which airlines offer direct flights from San Francisco to Boston?
At the moment, you can catch a nonstop flight from San Francisco to Boston with the following airlines, including: Jetblue Airways United Airlines Delta Air Lines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days. -
How long is a flight from San Francisco to Boston?
It takes about 5 hours 50 minutes to fly from San Francisco to Boston. -
When is the best time to book flights from San Francisco to Boston?
By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Francisco to Boston is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals. -
How many flights are there per week from San Francisco to Boston?
Based on Trip.com data in the past 4 weeks, there is 102 flight per week flying from San Francisco to Boston. You can check the weekly schedule for popular airlines on this route below: Jetblue Airways: S/M/T/W/T/F/S -- B61034 (00:47) Delta Air Lines: S/M/T/W/T/F/S -- DL400 (07:23) -
When are flight tickets from San Francisco (SFO) to Boston (BOS) the cheapest?
The cheapest months to fly from San Francisco to Boston is October, when demand for travel is lower. -
Which upcoming date is cheapest to fly from San Francisco to Boston on?
After crunching the numbers on our September flight calendar, it's currently cheapest to fly from San Francisco to Boston on September 28, 2026 with Frontier Airlines, with prices starting at US$90. -
Which airports fly into Boston from San Francisco?
You can land at any one of the following hubs in Boston: Hartford Barnes Airport (BNH), Boston Logan International Airport (BOS), and Portsmouth International Airport (PSM). Flying from San Francisco International Airport to Boston Logan International Airport (SFO-BOS) is by far the most common option on this route. -
Is there any time difference between San Francisco and Boston?
The time difference between Boston and San Francisco is 3h. -
How do I change or cancel my ticket from San Francisco to Boston?
Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
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