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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Maine 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 Maine 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 Maine 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 Maine 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 Maine 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>

$117 CHEAP FLIGHTS from Maine to San Francisco

SFO

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

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Flight Deals

Cheap Flights from Maine 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 Maine to San Francisco

Wed, Mar 18 - Mon, Mar 23

11:51 am - 7:14 pm

BOS

SFO

10h 23m

1 stop

10:38 pm - 11:41 am

SFO

BOS

10h 03m

1 stop

$219Frontier

Thu, Mar 5 - Wed, Mar 11

7:00 am - 3:48 pm

BOS

SFO

11h 48m

1 stop

11:34 am - 11:59 pm

SFO

BOS

9h 25m

1 stop

$220Hawaiian Airlines

Wed, Apr 8 - Mon, Apr 13

9:15 pm - 12:56 am

BOS

SFO

6h 41mnonstop

10:03 pm - 11:57 am

SFO

BOS

10h 54m

1 stop

$224Multiple Airlines

Wed, Mar 18 - Tue, Mar 24

8:59 pm - 12:51 am

BOS

SFO

6h 52mnonstop

10:38 pm - 11:13 am

SFO

BOS

9h 35m

1 stop

$225Multiple Airlines

Wed, Apr 29 - Wed, May 6

7:00 am - 2:21 pm

BOS

SFO

10h 21m

1 stop

10:25 am - 11:59 pm

SFO

BOS

10h 34m

1 stop

$227Alaska Airlines

Thu, Mar 5 - Wed, Mar 11

7:00 am - 3:48 pm

BOS

SFO

11h 48m

1 stop

11:34 am - 11:59 pm

SFO

BOS

9h 25m

1 stop

$228Alaska Airlines

Tue, Mar 31 - Tue, Apr 14

12:44 pm - 10:01 pm

PWM

SFO

12h 17m

2 stops

10:35 pm - 10:23 am

SFO

PWM

8h 48m

1 stop

$256American Airlines

Tue, Mar 31 - Tue, Apr 14

5:23 am - 12:49 pm

PWM

SFO

10h 26m

1 stop

10:30 pm - 3:57 pm

SFO

PWM

14h 27m

2 stops

$262Delta

Wed, Apr 8 - Mon, Apr 13

12:51 pm - 7:07 pm

PWM

SFO

9h 16m

1 stop

10:55 pm - 12:05 pm

SFO

PWM

10h 10m

1 stop

$283Delta

Wed, Apr 8 - Mon, Apr 13

6:01 pm - 11:59 pm

PWM

SFO

8h 58m

1 stop

10:28 pm - 12:38 pm

SFO

PWM

11h 10m

1 stop

$285American Airlines

Useful Info

Low season	January
High season	March
Cheapest flight	$117

Best time to beat the crowds with an average 3% drop in price.

Most popular time to fly with an average 1% increase in price.

Flight from Boston to San Francisco

How does KAYAK find such low prices on flights from Maine 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 Maine to San Francisco.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maine to San Francisco?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Maine 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 Maine 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 Maine with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine 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 Maine up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Calistoga

Rohnert Park

Marina

Emeryville

Capitola

Pacifica

Millbrae

Campbell

Mill Valley

Newark

Novato

Windsor

Union City

Belmont

Richmond

West Sacramento

American Canyon

Los Altos

Corte Madera

Jenner

Everything you need to know for your flight to San Francisco

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

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

San Francisco (SFO)

SFO

$117 Find Cheap Flights from Maine to San Francisco

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

Cheap Flights from Maine to San Francisco

Recent round-trip flight deals from Maine to San Francisco

Recent one-way flight deals from Maine to San Francisco

Recent last minute flight deals from Maine to San Francisco

Recent direct flight deals from Maine to San Francisco

Good to know

FAQs for booking flights from Maine to San Francisco

How does KAYAK find such low prices on flights from Maine 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 Maine to San Francisco.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Maine 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 Maine 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 Maine with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maine 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 Maine 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 Maine

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