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$113+ Cheap flights from Maine to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SFO
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Maine to San Francisco

Cheapest flights from Maine to San Francisco
Explore the most affordable flight options available from Maine to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Frontier deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/85:45 am
BOS
-
SFO
1 stop16h 29m
Frontier
Sun 4/1210:23 pm
SFO
-
BOS
1 stop10h 22m
Frontier
Deal found 1/26$215
This Kiwi.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:00 am
BOS
-
SFO
1 stop18h 39m
Frontier
Tue 3/38:25 am
SFO
-
BOS
2 stops13h 48m
Frontier
Deal found 1/25$216
This Delta deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:45 am
BOS
-
SFO
Nonstop7h 02m
Delta
Tue 2/247:10 am
SFO
-
BOS
Nonstop5h 39m
Delta
Deal found 1/24$217
This Expedia deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:44 pm
BOS
-
SFO
1 stop9h 15m
Multiple Airlines
Mon 3/910:38 pm
SFO
-
BOS
1 stop10h 03m
Multiple Airlines
Deal found 1/26$218
This Kiwi.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/194:36 pm
BOS
-
SFO
1 stop10h 08m
Hawaiian Airlines
Wed 2/256:40 am
SFO
-
BOS
1 stop7h 44m
Hawaiian Airlines
Deal found 1/25$219
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:00 am
BOS
-
SFO
1 stop18h 39m
Frontier
Wed 3/47:35 am
SFO
-
BOS
2 stops14h 38m
Frontier
Deal found 1/26$220
This Orbitz deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:00 am
BOS
-
SFO
1 stop13h 54m
Frontier
Tue 4/2810:38 pm
SFO
-
BOS
1 stop10h 27m
Frontier
Deal found 1/24$222
This Frontier deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1111:51 am
BOS
-
SFO
1 stop10h 23m
Frontier
Mon 3/1610:38 pm
SFO
-
BOS
1 stop10h 03m
Frontier
Deal found 1/25$224
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:50 pm
BOS
-
SFO
2 stops31h 11m
Multiple Airlines
Wed 2/2510:58 pm
SFO
-
BOS
1 stop23h 15m
Multiple Airlines
Deal found 1/26$226
This United Airlines deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2411:51 am
BOS
-
SFO
1 stop9h 25m
United Airlines
Thu 2/264:10 pm
SFO
-
BOS
Nonstop5h 39m
United Airlines
Deal found 1/24$227
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:50 pm
BOS
-
SFO
2 stops33h 38m
Multiple Airlines
Mon 3/910:38 pm
SFO
-
BOS
1 stop10h 03m
Multiple Airlines
Deal found 1/26$228
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:40 pm
PWM
-
SFO
1 stop9h 07m
American Airlines
Tue 3/36:00 am
SFO
-
PWM
1 stop8h 07m
American Airlines
Deal found 1/27$251

Find flight deals from Maine to San Francisco

Keep the following information in mind while searching for Maine to San Francisco flight deals. Data was last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$215
(Frontier)

One-way from

$113
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$386
Provider with most accurate pricing for Portland-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-San Francisco flights.
Search Deals
From Maine to San Francisco
Search Deals
One-way flight from Maine to San Francisco
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from Maine to San Francisco that are best for you.

Fly from

Maine

Fly to

San Francisco

Route

Depart

Return

Price

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/23

6:00 am-9:58 am

Nonstop6h 58m

San Francisco

Mon 3/2

1:08 pm-9:47 pm

Nonstop5h 39m

$217

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 2/19

7:45 am-11:47 am

Nonstop7h 02m

San Francisco

Tue 3/24

1:00 pm-9:39 pm

Nonstop5h 39m

$227

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/9

7:55 am-11:50 am

Nonstop6h 55m

San Francisco

Mon 2/9

11:15 pm-10:52 am

1 stop8h 37m

$227

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 2/24

5:44 pm-11:59 pm

1 stop9h 15m

San Francisco

Tue 3/3

8:42 am-11:59 pm

1 stop12h 17m

$237

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 2/19

7:45 am-11:47 am

Nonstop7h 02m

San Francisco

Wed 2/25

7:10 am-3:49 pm

Nonstop5h 39m

$237

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 3/11

8:40 pm-12:31 am

Nonstop6h 51m

San Francisco

Mon 3/16

3:50 pm-12:21 am

Nonstop5h 31m

$247

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/23

5:35 pm-9:35 pm

Nonstop7h 00m

San Francisco

Mon 3/2

7:10 am-3:49 pm

Nonstop5h 39m

$247

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/23

6:07 pm-12:15 am

1 stop9h 08m

San Francisco

Wed 2/25

1:08 pm-9:47 pm

Nonstop5h 39m

$247

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 2/28

5:35 pm-9:35 pm

Nonstop7h 00m

San Francisco

Wed 3/4

1:00 pm-9:35 pm

Nonstop5h 35m

$247

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/23

5:35 pm-9:35 pm

Nonstop7h 00m

San Francisco

Fri 3/6

1:00 pm-9:35 pm

Nonstop5h 35m

$247

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 51 results
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Best time to book a flight from Maine to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Maine with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Maine to San Francisco

What is the cheapest month to book a flight from Maine to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Maine to San Francisco (average of $219). Flying from Maine to San Francisco in March is currently the most expensive (average of $360). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Maine to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Maine?

    For a flight from Maine to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city.

  • How long is the flight from Maine to San Francisco?

    For as low as $217, United Airlines can have you in San Francisco from Maine in 6h 58m. Airlines will cover a distance of 2696 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Maine to San Francisco?

    Most travelers choose Boston Logan Intl - San Francisco, Portland - San Francisco or Bangor - San Francisco when deciding on the best route from Maine to San Francisco.

  • Can I find deals for flights from Maine to San Francisco that include hotel bookings?

    Yes. In addition to deals on Maine to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Maine to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maine to San Francisco.

  • Can I find deals for business class flights from Maine to San Francisco?

    Yes. Cheapflights offers flight deals from Maine to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Maine to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Maine to San Francisco (average of $219). Flying from Maine to San Francisco in March is currently the most expensive (average of $360). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Cruz
Roseville
Santa Clara
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Turlock
Vacaville
San Carlos
San Ramon
Manteca
Vallejo
San Lorenzo
Davis
Hollister
Redwood City
Union City

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Maine to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Maine to San Francisco

Discover the top 5 airlines that operate flights from Maine to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$238Average$442FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$268Average$574FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$272Average$477FlexibilityNo cancel feeOn-time63%
DeltaCheapest$276Average$397FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$320Average$495FlexibilityNo cancel feeOn-time62%

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