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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$159 CHEAP FLIGHTS from Massachusetts to San Francisco

SFO

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Cheap Flights from Massachusetts to San Francisco

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Massachusetts to San Francisco

Wed, Aug 19 - Tue, Aug 25

7:35 am - 11:09 am

BOS

SFO

6h 34mnonstop

7:00 am - 3:45 pm

SFO

BOS

5h 45mnonstop

$307Delta

Tue, Jun 2 - Tue, Jun 9

4:48 pm - 9:18 am

BOS

SFO

19h 30m

1 stop

7:20 am - 5:44 am

SFO

BOS

19h 24m

1 stop

$309Alaska Airlines

Wed, Jul 22 - Tue, Jul 28

6:00 am - 7:13 pm

BOS

SFO

16h 13m

1 stop

7:55 am - 5:40 am

SFO

BOS

18h 45m

1 stop

$310Multiple Airlines

Wed, Aug 26 - Mon, Aug 31

8:30 am - 5:22 pm

BOS

SFO

11h 52m

1 stop

10:17 pm - 7:00 am

SFO

BOS

5h 43mnonstop

$312Multiple Airlines

Wed, Jul 15 - Tue, Jul 21

8:55 pm - 12:31 am

BOS

SFO

6h 36mnonstop

3:19 pm - 11:59 pm

SFO

BOS

5h 40mnonstop

$322JetBlue

Tue, Jul 14 - Tue, Jul 21

6:29 pm - 12:59 am

ALB

SFO

9h 30m

1 stop

6:00 am - 6:04 pm

SFO

ALB

9h 04m

1 stop

$327American Airlines

Tue, Sep 1 - Wed, Sep 9

3:03 pm - 10:18 pm

ALB

SFO

10h 15m

2 stops

9:22 am - 10:14 pm

SFO

ALB

9h 52m

1 stop

$330American Airlines

Thu, Aug 6 - Tue, Aug 11

6:05 pm - 12:05 am

ALB

SFO

9h 00m

1 stop

11:40 pm - 11:35 am

SFO

ALB

8h 55m

1 stop

$340Southwest

Wed, Aug 19 - Mon, Aug 24

6:20 pm - 11:05 pm

ALB

SFO

7h 45m

1 stop

11:40 pm - 2:20 pm

SFO

ALB

11h 40m

2 stops

$345Southwest

Thu, Jul 9 - Sun, Jul 12

5:05 pm - 12:36 am

MVY

SFO

10h 31m

1 stop

11:44 pm - 10:08 am

SFO

MVY

7h 24m

1 stop

$626JetBlue

Useful Info

Low season	January
High season	May
Cheapest flight	$159

Best time to beat the crowds with an average 8% drop in price.

Most popular time to fly with an average 7% increase in price.

Flight from Boston to San Francisco

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

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.

Calistoga

Marina

Rohnert Park

Emeryville

Pacifica

Capitola

Millbrae

Campbell

Newark

Mill Valley

Novato

Windsor

Union City

West Sacramento

Belmont

Richmond

American Canyon

Corte Madera

Jenner

Los Altos

Everything you need to know for your flight to San Francisco

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Return flight deals

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

San Francisco (SFO)

SFO

$159 Find Cheap Flights from Massachusetts to San Francisco

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

Cheap Flights from Massachusetts to San Francisco

Recent round-trip flight deals from Massachusetts to San Francisco

Recent one-way flight deals from Massachusetts to San Francisco

Recent last minute flight deals from Massachusetts to San Francisco

Recent direct flight deals from Massachusetts to San Francisco

Good to know

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

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?

Everything you need to know for your flight to San Francisco

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

Cabin class types available on flights to Massachusetts

Complete your trip to San Francisco with a hotel stay or car rental

Find direct flights for San Francisco

Flights to other popular destinations

Flights from domestic origins to San Francisco

Choose which airport to fly into in San Francisco

Find deals for your return flight