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$114+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SFO
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Maine to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Maine (USME) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$203
(United Airlines)

One-way from

$114
(Delta)

Popular in

April

Cheapest in

September

Average price

$380
Provider with most accurate pricing for Portland-San Francisco flight deals.
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From Maine to San Francisco
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One-way flight from Maine to San Francisco
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Highest demand for flights based on searches. 22% potential increase in price ($147 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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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 January 30, 2025.

This United Airlines deal was found by Cheapflights users on 1/29. 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.
Wed 3/57:55 amBOS - SFO
Nonstop6h 55mUnited Airlines
Tue 3/111:08 pmSFO - BOS
1 stop7h 42mUnited Airlines
Deal found 1/29$203
This JetBlue deal was found by Cheapflights users on 1/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/34:40 pmBOS - SFO
1 stop10h 34mJetBlue
Wed 2/58:00 amSFO - BOS
Nonstop5h 34mJetBlue
Deal found 1/30$207
This Frontier deal was found by Cheapflights users on 1/29. 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.
Sat 5/310:05 amBOS - SFO
1 stop15h 15mFrontier
Thu 5/1511:50 pmSFO - BOS
1 stop8h 58mFrontier
Deal found 1/29$210
This Delta deal was found by Cheapflights users on 1/29. 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 2/215:50 pmBOS - SFO
Nonstop7h 06mDelta
Tue 2/257:30 amSFO - BOS
Nonstop5h 40mDelta
Deal found 1/29$212
This Expedia deal was found by Cheapflights users on 1/28. 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.
Tue 4/297:47 pmBOS - SFO
Nonstop6h 47mMultiple Airlines
Fri 5/211:53 pmSFO - BOS
1 stop8h 55mMultiple Airlines
Deal found 1/28$215
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/197:59 pmBOS - SFO
1 stop15h 53mAlaska Airlines
Wed 2/2611:35 amSFO - BOS
1 stop9h 24mAlaska Airlines
Deal found 1/29$216
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Thu 2/204:51 pmBOS - SFO
1 stop8h 47mAmerican Airlines
Wed 2/266:30 pmSFO - BOS
1 stop7h 55mAmerican Airlines
Deal found 1/29$236
This Delta deal was found by Cheapflights users on 1/29. 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.
Thu 8/1411:59 amPWM - SFO
1 stop9h 08mDelta
Sun 8/249:30 pmSFO - PWM
1 stop11h 09mDelta
Deal found 1/29$277
This Southwest deal was found by Cheapflights users on 1/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/42:05 pmBOS - SFO
1 stop11h 30mSouthwest
Wed 3/510:35 amSFO - BOS
1 stop10h 00mSouthwest
Deal found 1/28$298
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 8/155:18 pmPWM - SFO
1 stop8h 22mAmerican Airlines
Mon 8/2511:19 pmSFO - PWM
1 stop9h 41mAmerican Airlines
Deal found 1/29$308
This Southwest deal was found by Cheapflights users on 1/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/31:25 pmPWM - SFO
2 stops13h 20mSouthwest
Thu 3/611:00 amSFO - PWM
2 stops10h 05mSouthwest
Deal found 1/29$338
This Sun Country Air deal was found by Cheapflights users on 1/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2611:34 amBOS - SFO
1 stop14h 16mSun Country Air
Fri 8/111:59 pmSFO - BOS
1 stop7h 38mSun Country Air
Deal found 1/29$365

Find flights from Maine to San Francisco within your budget

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 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 2/26

5:54 pm-9:50 pm

Nonstop6h 56m

San Francisco

Mon 3/3

7:30 pm-7:20 am

1 stop8h 50m

$203

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/24

8:10 pm-11:55 pm

Nonstop6h 45m

San Francisco

Wed 2/26

12:56 pm-12:18 am

1 stop8h 22m

$207

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 5/3

10:05 am-10:20 pm

1 stop15h 15m

San Francisco

Thu 5/15

11:50 pm-11:48 am

1 stop8h 58m

$210

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 4/29

7:47 pm-11:34 pm

Nonstop6h 47m

San Francisco

Thu 5/1

11:50 pm-11:48 am

1 stop8h 58m

$215

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 2/19

7:59 pm-8:52 am

1 stop15h 53m

San Francisco

Wed 2/26

9:00 am-3:23 pm

1 stop27h 23m

$216

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sun 2/23

7:55 am-12:04 pm

Nonstop7h 09m

San Francisco

Thu 2/27

7:30 am-4:10 pm

Nonstop5h 40m

$224

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 2/20

4:51 pm-10:38 pm

1 stop8h 47m

San Francisco

Wed 2/26

6:30 pm-5:25 am

1 stop7h 55m

$236

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Thu 2/20

4:46 pm-11:19 pm

1 stop9h 33m

San Francisco

Thu 2/27

5:55 am-4:03 pm

1 stop7h 08m

$277

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 3/4

2:05 pm-10:35 pm

1 stop11h 30m

San Francisco

Wed 3/5

10:35 am-11:35 pm

1 stop10h 00m

$298

PortlandSan Francisco

PWM - SFO

PWMSFO

Portland

Fri 2/21

4:13 pm-10:52 pm

1 stop9h 39m

San Francisco

Mon 2/24

10:40 pm-12:24 pm

1 stop10h 44m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 41 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.

Travel insights for flights from Maine to San Francisco

Get recent, data-driven insights about flights from Maine to San Francisco including ideal travel times, pricing trends, and more.

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 $276). Flying from Maine to San Francisco in June is currently the most expensive (average of $405). 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 January 30, 2025.

When flying from Maine to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated January 30, 2025.
Read through reviews of airlines operating flights from Maine to San Francisco, such as Southwest, Alaska Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Food

7.1

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Food

7.1

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,688 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Food

7.1

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,454 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Food

7.1

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,156 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Food

7.1

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,913 reviews
Southwest
8.1
Very good
4,585 reviews

Entertainment

7.7

Food

7.1

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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.

  • 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 $114. American Airlines flights start at $119 while deals on Alaska Airlines start at $123 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 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 $276). Flying from Maine to San Francisco in June is currently the most expensive (average of $405). 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 Maine?

Book flights to Maine if you plan to visit one of these locations
Roseville
Mountain View
Turlock
Santa Cruz
Fairfield
Manteca
Sausalito
Watsonville
Hayward
Richmond
Hollister
South San Francisco
Antioch
Milpitas
Elk Grove
Vallejo
Newark
Alameda
Campbell
Pacific Grove

Browse thousands of different options on Cheapflights for your next trip

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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 3 airlines flying from Maine to San Francisco

Discover the top 3 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$217Average$535FlexibilityNo cancel feeOn-time71%
DeltaCheapest$255Average$447FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$276Average$694FlexibilityNo cancel feeOn-time69%
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