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$127+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SFO
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Find 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 November 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Sat 12/1310:56 amBOS - SFO
2 stops13h 54mMultiple Airlines
Sat 1/1011:20 pmSFO - BOS
1 stop22h 44mMultiple Airlines
Deal found 11/8$221
This Rumbo deal was found by Cheapflights users on 11/9. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/78:14 pmBOS - SFO
Nonstop6h 45mJetBlue
Sun 12/143:20 pmSFO - BOS
Nonstop5h 31mJetBlue
Deal found 11/9$223
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 11/2411:04 pmBOS - SFO
2 stops23h 19mMultiple Airlines
Tue 1/1311:20 pmSFO - BOS
1 stop20h 49mMultiple Airlines
Deal found 11/8$225
This Cheapflightsfares deal was found by Cheapflights users on 11/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:52 pmBOS - SFO
Nonstop6h 56mAlaska Airlines
Mon 12/157:00 amSFO - BOS
Nonstop5h 37mAlaska Airlines
Deal found 11/9$226
This CheapOair deal was found by Cheapflights users on 11/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:45 amBOS - SFO
Nonstop6h 48mJetBlue
Tue 12/163:20 pmSFO - BOS
Nonstop5h 31mJetBlue
Deal found 11/9$227
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Sun 11/235:45 pmBOS - SFO
2 stops40h 26mMultiple Airlines
Tue 1/1311:20 pmSFO - BOS
1 stop20h 49mMultiple Airlines
Deal found 11/8$229
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Sun 12/76:52 pmBOS - SFO
Nonstop6h 56mHawaiian Airlines
Tue 12/167:00 amSFO - BOS
1 stop7h 52mHawaiian Airlines
Deal found 11/8$232
This Trip.com deal was found by Cheapflights users on 11/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:52 pmBOS - SFO
Nonstop6h 56mHawaiian Airlines
Sat 12/137:00 amSFO - BOS
Nonstop5h 37mHawaiian Airlines
Deal found 11/8$234
This Cheapflightsfares deal was found by Cheapflights users on 11/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:52 pmBOS - SFO
Nonstop6h 56mAlaska Airlines
Sun 12/77:00 amSFO - BOS
Nonstop5h 37mAlaska Airlines
Deal found 11/10$235
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/88:11 pmBOS - SFO
2 stops23h 40mMultiple Airlines
Sat 1/1011:20 pmSFO - BOS
1 stop22h 44mMultiple Airlines
Deal found 11/8$236
This Delta deal was found by Cheapflights users on 11/10. 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.
Fri 12/124:45 pmBOS - SFO
Nonstop6h 46mDelta
Mon 12/159:41 pmSFO - BOS
Nonstop5h 43mDelta
Deal found 11/10$237
This Delta deal was found by Cheapflights users on 11/9. 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.
Sun 12/78:05 pmBOS - SFO
Nonstop6h 54mDelta
Tue 12/1612:40 pmSFO - BOS
Nonstop5h 40mDelta
Deal found 11/9$238

Cheap 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 November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$220
(Kiwi.com)

One-way from

$127
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$438
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. 6% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 10, 2025.
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

Sun 1/18

5:40 pm-9:44 pm

Nonstop7h 04m

San Francisco

Tue 2/3

7:10 am-3:51 pm

Nonstop5h 41m

$242

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 12/13

6:52 pm-10:48 pm

Nonstop6h 56m

San Francisco

Wed 1/28

2:58 pm-3:20 pm

1 stop21h 22m

$242

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 12/10

9:10 am-3:29 pm

1 stop9h 19m

San Francisco

Sun 12/14

1:05 pm-9:43 pm

Nonstop5h 38m

$247

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 1/12

8:05 pm-11:59 pm

Nonstop6h 54m

San Francisco

Sat 1/17

8:30 pm-5:01 am

Nonstop5h 31m

$247

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 12/8

8:05 pm-11:59 pm

Nonstop6h 54m

San Francisco

Thu 1/8

7:10 am-3:51 pm

Nonstop5h 41m

$247

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 12/6

6:52 pm-10:48 pm

Nonstop6h 56m

San Francisco

Wed 12/10

9:00 am-11:59 pm

1 stop11h 59m

$247

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Wed 1/21

12:40 pm-7:35 pm

1 stop9h 55m

San Francisco

Mon 2/2

12:17 am-3:31 pm

2 stops12h 14m

$256

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 12/8

6:59 pm-11:00 am

1 stop19h 01m

San Francisco

Mon 12/15

7:25 pm-7:29 am

1 stop9h 04m

$256

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 12/13

6:52 pm-10:48 pm

Nonstop6h 56m

San Francisco

Fri 1/23

7:00 am-11:54 pm

1 stop13h 54m

$257

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 1/15

7:30 am-2:12 pm

1 stop9h 42m

San Francisco

Wed 1/21

3:25 pm-11:58 pm

Nonstop5h 33m

$260

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Showing 1-10 of 55 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, May is the cheapest month in which you can book a flight from Maine to San Francisco (average of $156). Flying from Maine to San Francisco in March is currently the most expensive (average of $337). 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.

What is the cheapest time of day to fly from ME to SFO?

Find hourly flight availability from Maine to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 10, 2025.

One of the essential ways to save on airfare from Maine to San Francisco is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 39% on airfare.

What is the cheapest day to fly from Maine to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Maine to San Francisco. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Maine to San Francisco flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 $242, Delta can have you in San Francisco from Maine in 6h 56m. 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 cheapest airlines to fly from Maine to San Francisco one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $129. American Airlines flights start at $131 while deals on Alaska Airlines start at $138 one-way.

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

    Most travelers choose Boston Logan Intl - San Francisco, Portland - San Francisco or Augusta - 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, May is the cheapest month in which you can book a flight from Maine to San Francisco (average of $156). Flying from Maine to San Francisco in March is currently the most expensive (average of $337). 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
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
Vallejo
Hollister
San Bruno
Foster City
Redwood City
Union City
Burlingame
Lodi
San Mateo
Vacaville
Lathrop

Browse thousands of different options on Cheapflights for your next trip

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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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$234Average$479FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$272Average$477FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$276Average$602FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$385FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$320Average$495FlexibilityNo cancel feeOn-time62%

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