SFO

$119 Find Cheap Flights from Massachusetts to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Francisco departing on 1/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$222
Overall average: $333
Southwest
Wed 1/21Wed 1/28
BOS - SFO • 2 stops
Cheapest non-stop
$222
Typical prices: $247-$491
JetBlue
Mon 1/12Tue 1/20
BOS - SFO • Non-stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Massachusetts to San Francisco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Massachusetts to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Massachusetts to San Francisco

Wed, Jan 21 - Wed, Jan 28
Southwest Logo
6:50 am - 2:20 pm
BOS
-
SFO
10h 30m2 stops
Southwest Logo
6:05 am - 4:50 pm
SFO
-
BOS
7h 45m1 stop
$222Southwest
Wed, Jan 14 - Tue, Jan 20
Frontier Logo
6:00 am - 1:24 pm
BOS
-
SFO
10h 24m1 stop
Frontier Logo
7:00 am - 1:03 am
SFO
-
BOS
39h 03m2 stops
$223Frontier
Fri, Jan 9 - Tue, Jan 13
Multiple Airlines Logo
6:00 am - 1:18 pm
BOS
-
SFO
10h 18m1 stop
Multiple Airlines Logo
8:26 am - 5:05 pm
SFO
-
BOS
5h 39mnonstop
$225Multiple Airlines
Wed, Feb 11 - Sun, Feb 15
American Airlines Logo
11:10 am - 7:35 pm
BOS
-
SFO
11h 25m1 stop
American Airlines Logo
11:23 pm - 10:28 am
SFO
-
BOS
8h 05m1 stop
$227American Airlines
Wed, Apr 8 - Mon, Apr 13
Multiple Airlines Logo
6:00 am - 1:18 pm
BOS
-
SFO
10h 18m1 stop
Multiple Airlines Logo
8:45 pm - 5:27 am
SFO
-
BOS
5h 42mnonstop
$228Multiple Airlines
Thu, Jan 15 - Sat, Jan 31
JetBlue Logo
10:00 am - 1:55 pm
BOS
-
SFO
6h 55mnonstop
JetBlue Logo
8:29 pm - 5:00 am
SFO
-
BOS
5h 31mnonstop
$233JetBlue
Wed, Feb 11 - Sat, Feb 14
United Airlines Logo
10:56 am - 2:51 pm
BOS
-
SFO
6h 55mnonstop
United Airlines Logo
11:55 pm - 10:55 am
SFO
-
BOS
8h 00m1 stop
$234United Airlines
Wed, Jan 21 - Thu, Jan 29
United Airlines Logo
9:50 am - 5:19 pm
ALB
-
SFO
10h 29m1 stop
United Airlines Logo
9:20 pm - 10:05 am
SFO
-
ALB
9h 45m1 stop
$278United Airlines
Wed, Jan 21 - Thu, Jan 29
American Airlines Logo
1:40 pm - 11:12 pm
ALB
-
SFO
12h 32m2 stops
American Airlines Logo
7:00 am - 5:40 pm
SFO
-
ALB
7h 40m1 stop
$283American Airlines
Sat, Jan 31 - Wed, Feb 4
JetBlue Logo
6:00 am - 2:07 pm
BDL
-
SFO
11h 07m1 stop
JetBlue Logo
12:40 pm - 11:48 pm
SFO
-
BDL
8h 08m1 stop
$301JetBlue
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$119
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Boston to San Francisco

Flights from Massachusetts to San Francisco: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Massachusetts to San Francisco 
Learn how KAYAK collects reviews and tips from users.
GeraldFlew with Delta
BOS
-
SFO
Mar 2025
Book a flight early in the morning. The plane & crew will have arrived the previous night
PaulaFlew with Alaska Airlines
BOS
-
SFO
Jul 2024
Get your boarding pass online and save it to your wallet App on the iPhone. Makes it so easy

FAQs for booking flights from Massachusetts to San Francisco

  • How does KAYAK find such low prices on flights from Massachusetts to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Massachusetts to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Massachusetts with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Calistoga
Marina
Rohnert Park
Emeryville
Capitola
Pacifica
Millbrae
Campbell
Mill Valley
Newark
Novato
Windsor
Union City
Belmont
Richmond
West Sacramento
Los Altos
Corte Madera
American Canyon
Jenner

Everything you need to know for your flight to San Francisco

Information on the airport you'll fly into in San Francisco

San Francisco (SFO)