Portland

$147+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PWM
Aug 3 — Aug 101
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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 July 29, 2025.

Round-trip from

$274
(American Airlines)

One-way from

$147
(JetBlue)

Popular in

March

Cheapest in

January

Average price

$503
From San Francisco to Portland
One-way flight from San Francisco to Portland
Highest demand for flights based on searches. 20% potential increase in price ($130 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in July 2025

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 July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/279:12 amSFO - PWM
2 stops10h 47mAmerican Airlines
Wed 9/31:02 pmPWM - SFO
2 stops11h 03mAmerican Airlines
Deal found 7/28$274
This Delta deal was found by Cheapflights users on 7/28. 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.
Thu 9/1111:55 amSFO - PWM
1 stop9h 16mDelta
Tue 9/162:41 pmPWM - SFO
1 stop11h 57mDelta
Deal found 7/28$277
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/275:15 amSFO - PWM
1 stop9h 27mUnited Airlines
Wed 9/310:39 amPWM - SFO
1 stop8h 40mUnited Airlines
Deal found 7/28$283
This JetBlue deal was found by Cheapflights users on 7/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1211:29 pmSFO - PWM
1 stop10h 53mJetBlue
Tue 9/162:17 pmPWM - SFO
1 stop9h 46mJetBlue
Deal found 7/28$293
This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub 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 7/27$305
This CheapOair deal was found by Cheapflights users on 7/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/96:19 pmSFO - PWM
1 stop14h 16mMultiple Airlines
Sat 8/166:58 pmPWM - SFO
1 stop18h 27mMultiple Airlines
Deal found 7/27$374
This Sun Country Air deal was found by Cheapflights users on 7/27. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/96:19 pmSFO - PWM
1 stop14h 16mSun Country Air
Thu 8/2111:42 amPWM - SFO
1 stop24h 56mSun Country Air
Deal found 7/27$375
This Southwest deal was found by Cheapflights users on 7/28. 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 11/118:20 amSFO - PWM
2 stops10h 55mSouthwest
Sun 11/163:00 pmPWM - SFO
2 stops11h 35mSouthwest
Deal found 7/28$380

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 July 29, 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

Wed 8/27

9:12 am-10:59 pm

2 stops10h 47m

Portland

Wed 9/3

1:02 pm-9:05 pm

2 stops11h 03m

$274

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Thu 9/11

11:55 am-12:11 am

1 stop9h 16m

Portland

Fri 9/19

1:35 pm-8:28 pm

1 stop9h 53m

$277

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 8/27

5:15 am-5:42 pm

1 stop9h 27m

Portland

Wed 9/3

10:39 am-4:19 pm

1 stop8h 40m

$283

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 9/12

11:29 pm-1:22 pm

1 stop10h 53m

Portland

Tue 9/16

2:17 pm-9:03 pm

1 stop9h 46m

$293

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

$305

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Sat 8/9

6:19 pm-11:35 am

1 stop14h 16m

Portland

Sat 8/16

6:58 pm-10:25 am

1 stop18h 27m

$374

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Sat 8/9

6:19 pm-11:35 am

1 stop14h 16m

Portland

Thu 8/21

11:42 am-9:38 am

1 stop24h 56m

$375

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 9/19

9:05 pm-10:15 am

1 stop10h 10m

Portland

Sun 9/21

5:35 am-3:40 pm

1 stop13h 05m

$384

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 8/27

1:10 pm-12:17 am

1 stop8h 07m

$147

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 9/19

12:45 am-10:40 am

1 stop6h 55m

$156

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 18 results
1
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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 July 25, 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 July 29, 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.

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 July 29, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    American Airlines, at $274, was found to be the cheapest airline from San Francisco to Portland, Maine.Alternate airlines to your destination round-trip include Delta and United Airlines. American Airlines 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 JetBlue, which is currently one of the cheapest options available, starting at $147. Delta flights start at $156 while deals on Frontier start at $167 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 Portland?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Portland

See prices for flight routes from nearby airports that may be better suited for you.

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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$190Average$544FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$241Average$428FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$362FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$291Average$398FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$313Average$571FlexibilityNo cancel feeOn-time69%

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