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$126+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PWM
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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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

Find 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 October 28, 2025.

This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/165:50 amSFO - PWM
1 stop7h 17mDelta
Wed 11/196:00 amPWM - SFO
1 stop11h 43mDelta
Deal found 10/26$257
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:37 pmSFO - PWM
2 stops13h 36mDelta
Mon 12/86:08 amPWM - SFO
2 stops14h 56mDelta
Deal found 10/27$267
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:45 pmSFO - PWM
1 stop10h 23mDelta
Wed 11/196:00 amPWM - SFO
1 stop9h 30mDelta
Deal found 10/28$270
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/175:00 amSFO - PWM
1 stop7h 48mUnited Airlines
Thu 11/205:30 amPWM - SFO
1 stop8h 59mUnited Airlines
Deal found 10/27$272
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:30 pmSFO - PWM
2 stops13h 20mDelta
Tue 11/186:00 amPWM - SFO
1 stop9h 30mDelta
Deal found 10/28$275
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1612:30 amSFO - PWM
2 stops12h 37mDelta
Thu 11/206:00 amPWM - SFO
1 stop9h 30mDelta
Deal found 10/27$277
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1110:30 pmSFO - PWM
1 stop11h 00mDelta
Fri 11/146:00 amPWM - SFO
1 stop11h 43mDelta
Deal found 10/28$283
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:15 amSFO - PWM
2 stops13h 39mDelta
Fri 11/146:00 amPWM - SFO
1 stop11h 43mDelta
Deal found 10/28$288

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$251
(American Airlines)

One-way from

$126
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$444
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. 21% potential increase in price ($134 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 28, 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

Fri 12/5

5:50 am-4:07 pm

1 stop7h 17m

Portland

Mon 12/8

6:08 am-2:47 pm

1 stop11h 39m

$257

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Sun 11/16

5:50 am-4:07 pm

1 stop7h 17m

Portland

Wed 11/19

4:53 pm-11:11 pm

1 stop9h 18m

$257

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Sat 12/6

5:50 am-10:23 pm

2 stops13h 33m

Portland

Mon 12/8

6:08 am-2:47 pm

1 stop11h 39m

$262

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 11/10

9:35 pm-9:19 am

1 stop8h 44m

Portland

Sun 11/16

5:00 pm-11:59 pm

1 stop9h 59m

$270

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 11/11

10:30 pm-12:30 pm

1 stop11h 00m

Portland

Tue 11/18

1:25 pm-8:56 pm

1 stop10h 31m

$270

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 11/17

5:00 am-3:48 pm

1 stop7h 48m

Portland

Thu 11/20

5:30 am-11:29 am

1 stop8h 59m

$272

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 11/11

12:30 am-4:07 pm

2 stops12h 37m

Portland

Mon 11/17

4:53 pm-11:11 pm

1 stop9h 18m

$275

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 12/10

9:00 am-9:37 pm

1 stop9h 37m

$126

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Sun 2/8

1:00 am-2:39 pm

1 stop10h 39m

$129

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 11/17

11:14 pm-12:13 pm

1 stop9h 59m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 14 results
1
2

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 October.
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 October 24, 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, February is the cheapest month in which you can book a flight from San Francisco to Portland, Maine (average of $119). Flying from San Francisco to Portland, Maine in June is currently the most expensive (average of $218). 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 October 28, 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 October 28, 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
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
7,994 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,001 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,032 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
JetBlue
7.2
Good
2,908 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 7h 17m. 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?

    Southwest, at $190, was found to be the cheapest airline from San Francisco to Portland, Maine.Alternate airlines to your destination round-trip include American Airlines and Delta. Southwest is priced at 60% lower than the current average price of a flight leaving 3 months from now.

  • 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, February is the cheapest month in which you can book a flight from San Francisco to Portland, Maine (average of $119). Flying from San Francisco to Portland, Maine in June is currently the most expensive (average of $218). 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$190Average$437FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$245Average$422FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$363FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$291Average$398FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$300Average$560FlexibilityNo cancel feeOn-time69%

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