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>

$134 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

Fri, May 8 - Mon, May 18

8:19 pm - 11:59 pm

BOS

SFO

6h 40mnonstop

10:38 pm - 12:05 pm

SFO

BOS

10h 27m

1 stop

$239Multiple Airlines

Wed, May 20 - Wed, May 27

6:00 am - 4:54 pm

BOS

SFO

13h 54m

1 stop

6:16 am - 5:44 am

SFO

BOS

20h 28m

1 stop

$240Multiple Airlines

Wed, Apr 29 - Sun, May 3

6:00 am - 5:34 pm

BOS

SFO

14h 34m

1 stop

10:38 pm - 11:25 am

SFO

BOS

9h 47m

1 stop

$241Frontier

Wed, Apr 8 - Thu, Apr 16

5:45 am - 7:19 pm

BOS

SFO

16h 34m

1 stop

10:38 pm - 11:47 am

SFO

BOS

10h 09m

1 stop

$242Frontier

Fri, May 1 - Sun, May 3

8:19 pm - 11:59 pm

BOS

SFO

6h 40mnonstop

6:55 am - 3:40 pm

SFO

BOS

5h 45mnonstop

$252JetBlue

Sat, May 2 - Sat, May 9

3:02 pm - 9:19 pm

PWM

SFO

9h 17m

1 stop

5:45 am - 6:58 pm

SFO

PWM

10h 13m

1 stop

$290American Airlines

Wed, May 6 - Tue, May 12

11:57 am - 8:12 pm

PWM

SFO

11h 15m

1 stop

12:31 pm - 11:27 pm

SFO

PWM

7h 56m

1 stop

$291American Airlines

Tue, Mar 31 - Tue, Apr 14

5:23 am - 12:49 pm

PWM

SFO

10h 26m

1 stop

5:50 am - 3:57 pm

SFO

PWM

7h 07m

1 stop

$300Delta

Tue, Mar 31 - Tue, Apr 14

5:23 am - 12:49 pm

PWM

SFO

10h 26m

1 stop

6:00 am - 11:24 pm

SFO

PWM

14h 24m

2 stops

$305Delta

Wed, Apr 8 - Tue, Apr 14

7:55 am - 5:47 pm

AUG

SFO

12h 52m

1 stop

8:45 pm - 10:28 am

SFO

AUG

10h 43m

1 stop

$603JetBlue

Useful Info

Low season	January
High season	July
Cheapest flight	$134

Best time to beat the crowds with an average 5% drop in price.

Most popular time to fly and prices are also 3% lower on average.

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

Pacifica

Capitola

Millbrae

Campbell

Newark

Mill Valley

Novato

Windsor

Union City

Belmont

Richmond

West Sacramento

American Canyon

Corte Madera

Los Altos

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

$130 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