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$129+ Cheap flights from San Francisco to Portland, ME (SFO - PWM)

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PWM
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Francisco to Portland are usually found in January or September, booked 89 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from San Francisco to Portland

Cheapest flights from San Francisco to Portland
Explore the most affordable flight options available from San Francisco to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/266:45 amSFO - PWM
1 stop9h 06mUnited Airlines
Mon 1/54:10 pmPWM - SFO
2 stops18h 04mUnited Airlines
Deal found 12/11$605
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/284:55 pmSFO - PWM
1 stop13h 49mUnited Airlines
Sat 1/316:00 amPWM - SFO
1 stop10h 39mUnited Airlines
Deal found 12/9$666
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:55 pmSFO - PWM
1 stop10h 44mUnited Airlines
Wed 12/317:30 pmPWM - SFO
1 stop17h 46mUnited Airlines
Deal found 12/9$697
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/266:45 amSFO - PWM
1 stop9h 06mUnited Airlines
Wed 12/317:01 pmPWM - SFO
2 stops17h 41mUnited Airlines
Deal found 12/11$750
This American Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/2412:22 amSFO - PWM
1 stop7h 58mAmerican Airlines
Tue 12/305:45 amPWM - SFO
1 stop9h 03mAmerican Airlines
Deal found 12/11$771
This Southwest deal was found by Cheapflights users on 12/11. 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 12/235:35 amSFO - PWM
2 stops15h 30mSouthwest
Thu 1/15:30 amPWM - SFO
1 stop10h 50mSouthwest
Deal found 12/11$778
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:10 amSFO - PWM
1 stop9h 06mAmerican Airlines
Thu 1/1512:40 pmPWM - SFO
1 stop12h 33mAmerican Airlines
Deal found 12/10$780

Find flight deals from San Francisco to Portland

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Portland (PWM). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$257
(Delta)

One-way from

$129
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$794
Provider with most accurate pricing for San Francisco-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Portland flights.
Search Deals
From San Francisco to Portland
Search Deals
One-way flight from San Francisco to Portland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Portland 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 December 12, 2025.
Use the filters below to find and compare flights from San Francisco to Portland that are best for you.

Fly from

San Francisco

Fly to

Portland

Route

Depart

Return

Price

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 1/6

10:54 pm-12:08 pm

1 stop10h 14m

Portland

Wed 1/14

5:30 am-12:55 pm

1 stop10h 25m

$257

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 1/7

10:54 pm-12:08 pm

1 stop10h 14m

Portland

Wed 1/14

12:48 pm-11:25 pm

2 stops13h 37m

$262

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 1/6

5:45 am-10:27 pm

2 stops13h 42m

Portland

Tue 1/13

12:48 pm-11:25 pm

2 stops13h 37m

$267

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 2/3

9:00 am-10:07 pm

1 stop10h 07m

Portland

Sun 2/8

12:40 pm-7:35 pm

1 stop9h 55m

$269

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 1/5

6:00 am-12:20 am

2 stops15h 20m

Portland

Sat 1/10

2:35 pm-9:35 am

2 stops22h 00m

$298

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 5/13

6:00 am-4:15 pm

1 stop7h 15m

Portland

Tue 5/19

12:50 pm-11:12 pm

2 stops13h 22m

$318

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 1/7

10:54 pm-12:08 pm

1 stop10h 14m

Portland

Tue 1/13

5:30 am-12:55 pm

1 stop10h 25m

$325

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Sun 1/4

10:45 pm-12:08 pm

1 stop10h 23m

Portland

Wed 1/14

5:30 am-12:55 pm

1 stop10h 25m

$328

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 1/6

10:54 pm-12:08 pm

1 stop10h 14m

Portland

Mon 1/12

2:35 pm-12:49 pm

1 stop25h 14m

$331

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 1/16

7:00 am-10:07 pm

2 stops12h 07m

Portland

Tue 1/20

12:46 pm-11:12 pm

2 stops13h 26m

$333

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 21 results
1
2
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Compare providers for flights from San Francisco to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Portland in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Portland, Maine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Portland, Maine flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Francisco-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Portland, Maine flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from San Francisco 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 San Francisco to Portland

How far ahead should I book a flight from San Francisco to Portland, Maine?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Portland. Price data was last updated on December 5, 2025.

The price you pay for your flight from San Francisco to Portland, Maine may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, December is the cheapest month in which you can book a flight from San Francisco to Portland, Maine (average of $118). Flying from San Francisco to Portland, Maine in June is currently the most expensive (average of $219). 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 SFO to PWM?

Find hourly flight availability from San Francisco to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

It’s optimal to fly from San Francisco to Portland, Maine in the afternoon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated December 12, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from San Francisco to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
JetBlue
7.2
Good
2,899 reviews
Southwest
7.9
Good
4,253 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

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

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

    For as low as $257, Delta can have you in Portland, Maine from San Francisco in 10h 14m. San Francisco and Portland, Maine are separated by a distance of 2715 mi.

  • What are the cheapest airlines flying from San Francisco to Portland, Maine round-trip?

    JetBlue, at $190, was found to be the cheapest airline from San Francisco to Portland, Maine.Alternate airlines to your destination round-trip include Southwest and Delta. JetBlue is priced at 63% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San Francisco to Portland, Maine one-way?

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $101. Southwest flights start at $108 while deals on American Airlines start at $138 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Portland 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 San Francisco to Portland, Maine?

    Currently, December is the cheapest month in which you can book a flight from San Francisco to Portland, Maine (average of $118). Flying from San Francisco to Portland, Maine in June is currently the most expensive (average of $219). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Conway

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Top 5 airlines flying from San Francisco to Portland

Discover the top 5 airlines that operate flights from San Francisco to Portland. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$190Average$437FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$244Average$423FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$356FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$291Average$400FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$307Average$567FlexibilityNo cancel feeOn-time69%

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