HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$139+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PWM
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Portland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

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 June 12, 2025.

Round-trip from

$277
(Delta)

One-way from

$139
(Delta)

Popular in

March

Cheapest in

January

Average price

$520
From San Francisco to Portland
Search Deals
One-way flight from San Francisco to Portland
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 8/1112:40 amSFO - PWM
1 stop7h 00mDelta
Wed 8/201:34 pmPWM - SFO
1 stop9h 51mDelta
Deal found 6/10$277
This JetBlue deal was found by Cheapflights users on 6/12. 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.
Thu 7/101:10 pmSFO - PWM
1 stop8h 07mJetBlue
Tue 7/152:19 pmPWM - SFO
1 stop12h 25mJetBlue
Deal found 6/12$293
This Southwest deal was found by Cheapflights users on 6/12. 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.
Fri 9/57:05 amSFO - PWM
2 stops9h 55mSouthwest
Sun 9/75:35 amPWM - SFO
1 stop13h 05mSouthwest
Deal found 6/12$296
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/149:15 pmSFO - PWM
1 stop9h 09mUnited Airlines
Fri 7/187:15 pmPWM - SFO
1 stop8h 42mUnited Airlines
Deal found 6/10$309
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 8/45:41 amSFO - PWM
1 stop8h 54mAmerican Airlines
Wed 8/139:03 amPWM - SFO
1 stop10h 40mAmerican Airlines
Deal found 6/11$314
This Sun Country Air deal was found by Cheapflights users on 6/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1311:59 pmSFO - PWM
1 stop8h 36mSun Country Air
Sun 7/2012:52 pmPWM - SFO
1 stop22h 19mSun Country Air
Deal found 6/10$365
This CheapOair deal was found by Cheapflights users on 6/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/88:53 pmSFO - PWM
1 stop18h 20mFrontier
Sat 8/166:58 pmPWM - SFO
1 stop18h 27mFrontier
Deal found 6/10$394
This CheapOair deal was found by Cheapflights users on 6/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/118:53 pmSFO - PWM
1 stop18h 20mMultiple Airlines
Sun 7/2012:52 pmPWM - SFO
1 stop22h 19mMultiple Airlines
Deal found 6/11$492

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 June 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

Mon 8/11

12:40 am-10:40 am

1 stop7h 00m

Portland

Tue 8/26

2:36 pm-8:53 pm

1 stop9h 17m

$277

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Thu 7/10

1:10 pm-12:17 am

1 stop8h 07m

Portland

Tue 7/15

2:19 pm-11:44 pm

1 stop12h 25m

$293

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 9/5

7:05 am-8:00 pm

2 stops9h 55m

Portland

Sun 9/7

5:35 am-3:40 pm

1 stop13h 05m

$296

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 7/14

9:15 pm-9:24 am

1 stop9h 09m

Portland

Fri 7/18

7:15 pm-12:57 am

1 stop8h 42m

$309

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 8/4

5:41 am-5:35 pm

1 stop8h 54m

Portland

Wed 8/13

9:03 am-4:43 pm

1 stop10h 40m

$314

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Sun 7/13

11:59 pm-11:35 am

1 stop8h 36m

Portland

Sun 7/20

12:52 pm-8:11 am

1 stop22h 19m

$365

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 8/8

8:53 pm-6:13 pm

1 stop18h 20m

Portland

Sat 8/16

6:58 pm-10:25 am

1 stop18h 27m

$394

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 7/11

8:53 pm-6:13 pm

1 stop18h 20m

Portland

Sun 7/20

12:52 pm-8:11 am

1 stop22h 19m

$492

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 7/8

12:50 am-10:35 am

1 stop6h 45m

$139

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 7/8

1:10 pm-12:17 am

1 stop8h 07m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 17 results
1
2

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 June 9, 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, January is the cheapest month in which you can book a flight from San Francisco to Portland, Maine (average of $296). Flying from San Francisco to Portland, Maine in July is currently the most expensive (average of $394). 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 June 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 28% on the cost of your flight, compared to a flight at noon.

Rainfall in Portland by month

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

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

Temperature in Portland by month

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

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
To help decide which airline to fly from San Francisco to Portland, see what other customers have to say about Breeze Airways, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,287 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Delta
8.0
Very good
7,946 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
United Airlines
7.4
Good
8,790 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,925 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

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.

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

    Delta, at $277, was found to be the cheapest airline from San Francisco to Portland, Maine.Alternate airlines to your destination round-trip include JetBlue and Southwest. Delta is priced at 44% 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 Delta, which is currently one of the cheapest options available, starting at $139. JetBlue flights start at $147 while deals on Frontier start at $176 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, January is the cheapest month in which you can book a flight from San Francisco to Portland, Maine (average of $296). Flying from San Francisco to Portland, Maine in July is currently the most expensive (average of $394). 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
North Conway
Bath
Brunswick
Auburn
Conway
Lewiston

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 San Francisco to Portland

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Boston flights
San Francisco to Boston flights
San Diego to Boston flights
Ontario to Boston flights
Burbank to Boston flights
Santa Ana to Boston flights
Las Vegas to Boston flights
San Jose to Boston flights
Sacramento to Boston flights
Oakland to Boston flights
Long Beach to Boston flights
Los Angeles to Portland flights
Reno to Boston flights
Palm Springs to Boston flights
Fresno to Boston flights
San Francisco to Bangor flights
Los Angeles to Bangor flights
San Diego to Portland flights
Las Vegas to Bangor flights
Ontario to Portland flights
San Luis Obispo to Boston flights
Sacramento to Portland flights
Santa Barbara to Boston flights
Monterey to Boston flights
Ontario to Bangor flights
Las Vegas to Portland flights
San Jose to Bangor flights
San Jose to Portland flights
Medford to Boston flights
Reno to Portland flights
San Diego to Bangor flights
Santa Ana to Portland flights
Arcata to Boston flights
Los Angeles to Bar Harbor flights
Santa Barbara to Portland flights
Monterey to Portland flights
Burbank to Portland flights
Santa Ana to Bangor flights
Redding to Boston flights
Oakland to Portland flights
Santa Rosa to Boston flights
Bakersfield to Boston flights
Long Beach to Portland flights
Sacramento to Bangor flights
Los Angeles to Augusta flights
Medford to Portland flights
Burbank to Bangor flights
Los Angeles to Rockland flights
Palm Springs to Portland flights

Top 6 airlines flying from San Francisco to Portland

Discover the top 6 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$190Average$387FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$190Average$485FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$246Average$447FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$372FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$303Average$581FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$397Average$520FlexibilityNo cancel feeOn-time83%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.