Cheap flights from San Francisco to Boston (SFO - BOS)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from San Francisco to Boston Logan Intl are usually found in February or January, booked 32 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

How to find the cheapest flight from
San Francisco (SFO) to Boston (BOS)

All the information you need to plan the best SFO to BOS flight in 2021: compare San Francisco to Boston flight prices with the expected peak season, weather and rainfall in Boston.
SFO - BOS
Price
$257 - $434
BOS
Temperature
39.2 - 84.2 °F
BOS
Precipitation
2.8 - 3.9 inches

Popular in

December

High demand for flights, 27% potential price rise

Cheapest in

February

Best time to find cheap flights, 19% potential price drop

Round-trip from

$257

From San Francisco to Boston Logan Intl

One-way from

$91

One-way flight from San Francisco to Boston Logan Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from San Francisco to Boston?

Users have found that flying from San Francisco to Boston on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from San Francisco to Boston?

Find a great deal and save up to 83% by booking at least 31 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Francisco to Boston within the next two weeks, with the cheapest ticket starting at $405.

What is the cheapest month to fly from San Francisco to Boston?

February can be a great time to fly to Boston from San Francisco with a flight ticket averaging about $317. Cheapflights users have found deals in the month of February for as cheap as $159. The most expensive prices can be found in the month of December.

When is the cheapest time to fly from San Francisco to Boston (SFO - BOS)?

It’s typically best to fly out from San Francisco to Boston in the afternoon. Doing so could potentially save you 28% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from San Francisco to Boston in September, October 2021

The best prices found for SFO to BOS flights for September, October
19 Oct - 26 Oct
$165pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco
19 Oct - 26 Oct
$170pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco
29 Sep - 12 Oct
$173pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco

San Francisco to Boston 2021 flight deals

Cheap flights to Boston from San Francisco found for this year
19 Oct - 26 Oct
$165pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco
4 Nov - 8 Nov
$168pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco
19 Oct - 26 Oct
$170pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco

Non-stop flights to Boston from San Francisco

Save time with San Francisco to Boston direct flight deals
21 Sep - 23 Sep
$198pp
SFO
San Francisco
Alaska Airlines
Non-Stop
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
23 Sep - 27 Sep
$200pp
SFO
San Francisco
Alaska Airlines
Non-Stop
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
1 Nov - 5 Nov
$206pp
SFO
San Francisco
Alaska Airlines
Non-Stop
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Alaska Airlines
Non-Stop
SFO
San Francisco

Last minute flights from San Francisco to Boston

Late deals on round-trip flights to Boston from San Francisco, departing today and this week
22 Sep - 28 Sep
$183pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco
21 Sep - 25 Sep
$187pp
SFO
San Francisco
Multiple Airlines
Non-Stop
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco
21 Sep - 28 Sep
$189pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SFO
San Francisco

One-way flights to Logan Intl from San Francisco

The cheapest one-way flights from San Francisco to Boston
8:25 am - 7:59 pm
Alaska Airlines
1 Stop
8h 34m
SFO - BOS
Alaska Airlines
$91
mytrip.com
7:42 am - 5:04 am
Frontier
2 Stops
18h 22m
SFO - BOS
Frontier
$106
Kiwi.com
1:15 am - 5:24 am
Multiple Airlines
3 Stops
25h 09m
SFO - BOS
Multiple Airlines
$109
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">San Francisco</span> to <span class="emphasized">Boston</span> flights.

Flight FAQs

From San Francisco to Boston

What airports do I use to fly from San Francisco to Boston?

To fly from San Francisco to Boston, you need to book a flight from San Francisco (SFO) to Logan Intl (BOS). Nonstop flights to Boston Logan Intl from San Francisco take 5h 25m on average. When it comes time to book airfare, you have a few options: there are 32 outbound flights from San Francisco to Logan Intl offered by 9 different airlines.

Which airlines flying from San Francisco to Boston Logan Intl have flexible cancellations due to COVID-19?

United Airlines, JetBlue, and Delta are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Are flight prices decreasing from San Francisco to Boston due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both San Francisco and Boston for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from San Francisco to Boston for under $200 on Cheapflights?

Yes, there are multiple flights from San Francisco to Boston for under $200. The cheapest flight booked recently is on Multiple Airlines for just $165, but on average you can expect to pay $181.

Are there nonstop flights from San Francisco to Boston for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from San Francisco to Boston under $200. A good price for a nonstop flight from San Francisco to Boston is less than $223.

Are there last-minute flights available from San Francisco to Boston for under $200?

There are currently 20+ open flights from San Francisco to Boston within the next 7 days for less than $200.

How popular is this San Francisco to Boston flight route?

The San Francisco to Boston Logan Intl flight path was viewed by 261 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What is the cheapest airline to fly from San Francisco to Boston round-trip?

Our cheapest airline available from San Francisco to Boston is Alaska Airlines. Our recent data shows that you can find tickets from as low as $200 on this airline. You may be able to fly from San Francisco to Boston for 36% less than the average price by searching for this airline.

COVID Restrictions

View COVID Travel Restrictions for Boston, MA

Do I need a COVID test to fly to Boston from San Francisco?

Information is based on travel restrictions for travel to Boston Logan Intl within the United States

Most visitors from San Francisco need to provide a negative COVID-19 test result and/or quarantine to enter Boston Logan Intl.

COVID-19 testing requirements
Visitors from San Francisco must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Boston Logan Intl.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering Boston Logan Intl.

Do I need a test to fly back to San Francisco from Boston?

Returning to San Francisco from Boston Logan Intl

COVID-19 testing requirements
Visitors from Boston Logan Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Francisco.

Quarantine requirements
Visitors from Boston Logan Intl are not required to quarantine after entering San Francisco.

Hide COVID Travel Restrictions for Boston, MA

Alternative routes for San Francisco to Boston

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Boston

Things to know before you go - useful duration and weather info for your trip from San Francisco to Boston.
Average temperature for September in Boston
75.2 °F
Avg rainfall for September in Boston
3.7 ″

Airports servicing San Francisco

Airports servicing Boston

Top 8 airlines flying from San Francisco to Boston Logan Intl

The chart below displays the airlines Cheapflights users traveling from San Francisco to Boston choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$114 $260 No cancel fee 62%
Sun Country Air
$151 $262 No cancel fee 83%
American Airlines
$117 $298 No cancel fee 71%
Delta
$118 $314 No cancel fee N/A
Spirit Airlines
$127 $325 No cancel fee 65%
Alaska Airlines
$118 $331 No cancel fee 75%
United Airlines
$138 $405 No cancel fee 69%
JetBlue
$152 $410 No cancel fee 62%

Hourly flight availability from San Francisco to Boston

See what time of day planes typically take off from San Francisco towards Boston.
Morning 6 AM to noon 66% of SFO to BOS departures
Evening 6 PM to midnight 21% of SFO to BOS departures
Afternoon Noon to 6 PM 12% of SFO to BOS departures
Early morning Midnight to 6 AM 1% of SFO to BOS departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Francisco to Boston
See how many times per day planes take to the skies headed from San Francisco to Boston.
Sunday
34 daily flights
Monday
36 daily flights
Tuesday
32 daily flights
Wednesday
36 daily flights
Thursday
38 daily flights
Friday
36 daily flights
Saturday
17 daily flights
Home North America USA Massachusetts Boston Cheap flights from San Francisco to Boston