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>

$158 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

Thu, May 28 - Sun, May 31

6:00 am - 7:34 pm

BOS

SFO

16h 34m

1 stop

7:40 am - 6:20 am

SFO

BOS

19h 40m

1 stop

$300Multiple Airlines

Sun, May 24 - Tue, Jun 2

6:00 am - 7:34 pm

BOS

SFO

16h 34m

1 stop

3:10 pm - 11:58 pm

SFO

BOS

5h 48mnonstop

$301Multiple Airlines

Tue, Jul 14 - Tue, Jul 21

8:55 pm - 12:31 am

BOS

SFO

6h 36mnonstop

10:17 pm - 7:00 am

SFO

BOS

5h 43mnonstop

$302JetBlue

Wed, Jul 22 - Tue, Jul 28

8:55 pm - 12:31 am

BOS

SFO

6h 36mnonstop

3:19 pm - 11:59 pm

SFO

BOS

5h 40mnonstop

$307JetBlue

Sat, Jun 6 - Sat, Jun 20

6:00 am - 11:44 am

BGR

SFO

8h 44m

1 stop

11:59 pm - 11:04 am

SFO

BGR

8h 05m

1 stop

$369United Airlines

Thu, Jun 25 - Sun, Jul 5

2:24 pm - 9:19 pm

PWM

SFO

9h 55m

1 stop

5:29 am - 4:42 pm

SFO

PWM

8h 13m

1 stop

$369American Airlines

Wed, Sep 2 - Wed, Sep 16

8:00 am - 4:02 pm

PWM

SFO

11h 02m

2 stops

6:01 am - 4:58 pm

SFO

PWM

7h 57m

1 stop

$374American Airlines

Tue, Jun 30 - Mon, Jul 27

4:57 pm - 10:28 pm

BGR

SFO

8h 31m

1 stop

7:50 am - 11:11 pm

SFO

BGR

12h 21m

2 stops

$374Delta

Thu, Jul 2 - Tue, Jul 21

2:45 pm - 11:25 pm

BGR

SFO

11h 40m

2 stops

6:00 am - 11:11 pm

SFO

BGR

14h 11m

2 stops

$379Delta

Thu, Jun 11 - Mon, Jun 15

6:00 am - 1:14 pm

BGR

SFO

10h 14m

1 stop

10:35 pm - 11:04 am

SFO

BGR

9h 29m

1 stop

$405United Airlines

Useful Info

Low season	January
High season	May
Cheapest flight	$158

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

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

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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Cabin class

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Direct Flights

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Origins

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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 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