SFO

$109 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 9/4. 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

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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, Sep 24 - Sat, Sep 27
United Airlines Logo
6:02 am - 9:33 amBOS-SFO
6h 31mnonstop
United Airlines Logo
8:25 am - 5:11 pmSFO-BOS
5h 46mnonstop
$237United Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
Logo
8:23 pm - 11:52 pmBOS-SFO
6h 29mnonstop
Logo
6:10 am - 3:00 pmSFO-BOS
5h 50mnonstop
$238
Find Deal
Sat, Sep 20 - Sat, Sep 27
Delta Logo
7:55 am - 11:33 amBOS-SFO
6h 38mnonstop
Delta Logo
7:05 am - 3:47 pmSFO-BOS
5h 42mnonstop
$239Delta
Find Deal
Sat, Sep 20 - Sat, Sep 27
Delta Logo
7:55 am - 11:33 amBOS-SFO
6h 38mnonstop
Delta Logo
7:05 am - 3:47 pmSFO-BOS
5h 42mnonstop
$240Delta
Find Deal
Tue, Sep 16 - Tue, Sep 23
Hawaiian Airlines Logo
7:45 am - 2:10 pmBOS-SFO
9h 25m1 stop
Hawaiian Airlines Logo
6:10 am - 3:00 pmSFO-BOS
5h 50mnonstop
$243Hawaiian Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
JetBlue Logo
8:10 pm - 11:59 pmBOS-SFO
6h 49mnonstop
JetBlue Logo
10:00 pm - 6:39 amSFO-BOS
5h 39mnonstop
$244JetBlue
Find Deal
Thu, Sep 18 - Tue, Sep 23
Hawaiian Airlines Logo
8:23 pm - 11:52 pmBOS-SFO
6h 29mnonstop
Hawaiian Airlines Logo
6:10 am - 3:00 pmSFO-BOS
5h 50mnonstop
$246Hawaiian Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
Frontier Logo
8:38 am - 9:21 pmBOS-SFO
15h 43m1 stop
Frontier Logo
11:00 pm - 9:58 amSFO-BOS
31h 58m1 stop
$249Frontier
Find Deal
Sat, Sep 27 - Wed, Oct 8
JetBlue Logo
8:10 pm - 11:59 pmBOS-SFO
6h 49mnonstop
JetBlue Logo
9:00 am - 5:58 pmSFO-BOS
5h 58mnonstop
$257JetBlue
Find Deal
Fri, Sep 5 - Sat, Sep 13
Frontier Logo
10:53 am - 9:21 pmBOS-SFO
13h 28m1 stop
Frontier Logo
11:00 pm - 9:58 amSFO-BOS
31h 58m1 stop
$260Frontier
Find Deal
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$109
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Albany 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 DeltaBOS-SFOMar 2025
Book a flight early in the morning. The plane & crew will have arrived the previous night
PaulaFlew with Alaska AirlinesBOS-SFOJul 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
Pacifica
Capitola
Emeryville
Rohnert Park
Millbrae
Campbell
Mill Valley
Newark
Novato
Windsor
Belmont
Los Altos
Union City
Richmond
West Sacramento
Jenner
Corte Madera
American Canyon

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)

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