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Cheap flights from Maine to San Francisco from $111

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to San Francisco departing on 6/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Maine to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:30 am - 7:14 pm
BOS
-
SFO
16h 44m
1 stop
Frontier Logo
10:23 pm - 11:45 am
SFO
-
BOS
10h 22m
1 stop
$256Frontier
Thu, Apr 2 - Sat, Apr 11
Multiple Airlines Logo
6:00 am - 5:34 pm
BOS
-
SFO
14h 34m
1 stop
Multiple Airlines Logo
10:25 am - 11:59 pm
SFO
-
BOS
10h 34m
1 stop
$259Multiple Airlines
Wed, Apr 29 - Tue, May 5
Frontier Logo
5:45 am - 7:14 pm
BOS
-
SFO
16h 29m
1 stop
Frontier Logo
10:03 pm - 11:45 am
SFO
-
BOS
10h 42m
1 stop
$260Frontier
Wed, Apr 1 - Mon, Apr 13
Southwest Logo
2:25 pm - 10:10 pm
BOS
-
SFO
10h 45m
2 stops
Southwest Logo
7:15 pm - 8:15 am
SFO
-
BOS
10h 00m
2 stops
$261Southwest
Wed, May 6 - Tue, May 12
Multiple Airlines Logo
6:00 am - 12:47 pm
BOS
-
SFO
9h 47m
1 stop
Multiple Airlines Logo
10:38 pm - 11:25 am
SFO
-
BOS
9h 47m
1 stop
$262Multiple Airlines
Mon, Apr 13 - Sun, Apr 19
Multiple Airlines Logo
8:19 pm - 11:59 pm
BOS
-
SFO
6h 40mnonstop
Multiple Airlines Logo
10:38 pm - 11:25 am
SFO
-
BOS
9h 47m
1 stop
$264Multiple Airlines
Thu, Apr 30 - Sun, May 3
Frontier Logo
5:30 am - 7:14 pm
BOS
-
SFO
16h 44m
1 stop
Frontier Logo
10:03 pm - 11:45 am
SFO
-
BOS
10h 42m
1 stop
$265Frontier
Sat, Apr 4 - Mon, Apr 13
Hawaiian Airlines Logo
6:00 am - 12:47 pm
BOS
-
SFO
9h 47m
1 stop
Hawaiian Airlines Logo
6:40 pm - 5:53 am
SFO
-
BOS
8h 13m
1 stop
$268Hawaiian Airlines
Thu, Apr 9 - Wed, Apr 15
Delta Logo
2:51 pm - 11:12 pm
PWM
-
SFO
11h 21m
1 stop
Delta Logo
11:50 am - 12:46 am
SFO
-
PWM
9h 56m
1 stop
$291Delta
Wed, Apr 22 - Wed, Apr 29
Delta Logo
12:55 pm - 10:23 pm
PWM
-
SFO
12h 28m
2 stops
Delta Logo
1:05 pm - 12:43 am
SFO
-
PWM
8h 38m
1 stop
$306Delta
Thu, May 7 - Tue, May 12

Frontier flights from Maine to San Francisco

Our best Frontier deals on Maine to San Francisco flight tickets
Frontier
Apr 9
BOS5:30 amBoston Logan Intl
16h 49m
1 stop
SFO7:19 pmSan Francisco
Apr 13
SFO10:03 pmSan Francisco
10h 42m
1 stop
BOS11:45 amBoston Logan Intl
$255
Frontier
Apr 2
BOS5:30 amBoston Logan Intl
16h 44m
1 stop
SFO7:14 pmSan Francisco
Apr 11
SFO10:23 pmSan Francisco
10h 22m
1 stop
BOS11:45 amBoston Logan Intl
$256
Frontier
Apr 3
BOS5:30 amBoston Logan Intl
16h 44m
1 stop
SFO7:14 pmSan Francisco
Apr 13
SFO10:03 pmSan Francisco
10h 42m
1 stop
BOS11:45 amBoston Logan Intl
$260

American Airlines flights from Maine to San Francisco

Our best American Airlines deals on Maine to San Francisco flight tickets
American Airlines
May 20
PWM7:23 pmPortland
8h 53m
1 stop
SFO1:16 amSan Francisco
May 30
SFO5:18 amSan Francisco
8h 28m
1 stop
PWM4:46 pmPortland
$330
American Airlines
Apr 22
PWM6:01 pmPortland
8h 58m
1 stop
SFO11:59 pmSan Francisco
Apr 29
SFO5:30 amSan Francisco
9h 01m
1 stop
PWM5:31 pmPortland
$331
American Airlines
Apr 22
PWM3:39 pmPortland
11h 20m
2 stops
SFO11:59 pmSan Francisco
Apr 29
SFO5:30 amSan Francisco
9h 01m
1 stop
PWM5:31 pmPortland
$336

momondo Fare Finder

 
Customize your flight search to find flights from Maine to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 24, 2026.
Use the filters below to find and compare flights from Maine to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 4/2

5:30 am-7:14 pm

1 stop16h 44m

San Francisco

Sat 4/11

10:23 pm-11:45 am

1 stop10h 22m

$256

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 4/29

6:00 am-5:34 pm

1 stop14h 34m

San Francisco

Tue 5/5

10:25 am-11:59 pm

1 stop10h 34m

$259

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 4/1

5:45 am-7:14 pm

1 stop16h 29m

San Francisco

Mon 4/13

10:03 pm-11:45 am

1 stop10h 42m

$260

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 5/6

2:25 pm-10:10 pm

2 stops10h 45m

San Francisco

Tue 5/12

7:15 pm-8:15 am

2 stops10h 00m

$261

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 4/13

6:00 am-12:47 pm

1 stop9h 47m

San Francisco

Sun 4/19

10:38 pm-11:25 am

1 stop9h 47m

$262
Quickest round-trip

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 4/30

8:19 pm-11:59 pm

Nonstop6h 40m

San Francisco

Sun 5/3

10:38 pm-11:25 am

1 stop9h 47m

$264

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 4/4

5:30 am-7:14 pm

1 stop16h 44m

San Francisco

Mon 4/13

10:03 pm-11:45 am

1 stop10h 42m

$265

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 4/9

6:00 am-12:47 pm

1 stop9h 47m

San Francisco

Wed 4/15

6:40 pm-5:53 am

1 stop8h 13m

$268

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Wed 4/22

2:51 pm-11:12 pm

1 stop11h 21m

San Francisco

Wed 4/29

11:50 am-12:46 am

1 stop9h 56m

$291

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Thu 5/7

12:55 pm-10:23 pm

2 stops12h 28m

San Francisco

Tue 5/12

1:05 pm-12:43 am

1 stop8h 38m

$306

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Maine to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $350.

What is the cheapest Maine to San Francisco flight route?

Fly from Portland to San Francisco for the best Maine - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $443 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Maine for as low as $320 on momondo.

What cabin class options are available on Maine to San Francisco flights?

There is only 1 cabin class available to choose from on Maine to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Maine to San Francisco flights?

You could potentially save up to 29% on your flight if you consider stops on a Maine to San Francisco flight.

Cheap Maine to San Francisco flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maine to San Francisco

Fastest flight time

6h 27m

Direct flights

Every day

Airports in San Francisco

1 airport
The fastest flight from Maine to San Francisco takes 6h 27m
Direct flights go from Maine to San Francisco every day.
There is 1 airport in San Francisco. From Maine there are direct flights to San Francisco (SFO).
Search flight deals

  • When did momondo last update prices for flights from Maine to San Francisco Airport?

    Prices for flights from Maine to San Francisco Airport are updated daily.

  • How many operators does momondo search for flights from Maine to San Francisco Airport?

  • How old do you have to be to fly from Maine to San Francisco Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maine to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Maine to San Francisco

Compare and see reviews for airlines that fly from Maine to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $236Free CancellationRating
7.2
2,904 reviews
Search JetBlue flights
American AirlinesPriceFrom $243Free CancellationRating
7.1
11,491 reviews
Search American Airlines flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,469 reviews
Search United Airlines flights
SouthwestPriceFrom $272Free CancellationRating
8.0
4,331 reviews
Search Southwest flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,321 reviews
Search Delta flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Walnut Creek
Roseville
Hayward
Berkeley
Santa Clara
Big Sur
Fremont
Calistoga
Vallejo
Salinas
Daly City
Half Moon Bay
Milpitas
South San Francisco
Pacific Grove

Why use momondo?

Why should I use momondo to find a flight deal from Maine to San Francisco?

Finding the right flight to San Francisco from Maine is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

Can I find flights from Maine to San Francisco with flexible booking policies on momondo?

Yes. All flights to San Francisco from Maine on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Maine to San Francisco?

momondo provides multiple filters to help you find the best flight to San Francisco from Maine. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Maine to San Francisco right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Maine to San Francisco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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