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Cheap flights from San Francisco to Portland from $184

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Portland departing on 8/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
11:59 pm - 1:45 pm
SFO
-
PWM
10h 46m
1 stop
JetBlue Logo
1:25 pm - 7:13 pm
PWM
-
SFO
8h 48m
1 stop
$352JetBlue
Tue, Aug 18 - Tue, Aug 25
United Airlines Logo
10:15 pm - 9:08 am
SFO
-
PWM
7h 53m
1 stop
United Airlines Logo
7:30 am - 11:05 am
PWM
-
SFO
6h 35mnonstop
$359United Airlines
Wed, Sep 16 - Sun, Sep 20
Southwest Logo
10:30 pm - 9:55 am
SFO
-
PWM
8h 25m
1 stop
Southwest Logo
5:55 am - 1:00 pm
PWM
-
SFO
10h 05m
1 stop
$367Southwest
Mon, Aug 24 - Mon, Aug 31
American Airlines Logo
6:00 am - 6:34 pm
SFO
-
PWM
9h 34m
1 stop
American Airlines Logo
3:06 pm - 9:09 pm
PWM
-
SFO
9h 03m
1 stop
$368American Airlines
Mon, Aug 3 - Thu, Aug 13
Delta Logo
11:49 am - 12:59 am
SFO
-
PWM
10h 10m
1 stop
Delta Logo
6:00 am - 12:19 pm
PWM
-
SFO
9h 19m
1 stop
$369Delta
Wed, Aug 12 - Fri, Aug 21
Southwest Logo
7:55 pm - 9:55 am
SFO
-
PWM
11h 00m
2 stops
Southwest Logo
5:55 am - 1:00 pm
PWM
-
SFO
10h 05m
1 stop
$372Southwest
Mon, Aug 24 - Mon, Aug 31
Southwest Logo
11:40 pm - 12:25 pm
SFO
-
PWM
9h 45m
2 stops
Southwest Logo
5:50 am - 1:05 pm
PWM
-
SFO
10h 15m
1 stop
$373Southwest
Sun, Sep 27 - Tue, Oct 6
Southwest Logo
10:30 pm - 9:50 am
SFO
-
PWM
8h 20m
1 stop
Southwest Logo
5:45 am - 2:05 pm
PWM
-
SFO
11h 20m
2 stops
$374Southwest
Wed, Aug 12 - Wed, Aug 19
JetBlue Logo
11:59 pm - 1:45 pm
SFO
-
PWM
10h 46m
1 stop
JetBlue Logo
1:25 pm - 10:11 pm
PWM
-
SFO
11h 46m
1 stop
$377JetBlue
Fri, Aug 7 - Tue, Aug 18
Southwest Logo
7:55 pm - 9:55 am
SFO
-
PWM
11h 00m
2 stops
Southwest Logo
10:25 am - 7:20 pm
PWM
-
SFO
11h 55m
2 stops
$378Southwest
Fri, Sep 25 - Wed, Oct 7

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Southwest flights from San Francisco to Portland, Maine

Our best Southwest deals on San Francisco to Portland, Maine flight tickets
Southwest
Aug 24
SFO10:30 pmSan Francisco
8h 25m
1 stop
PWM9:55 amPortland
Aug 31
PWM5:55 amPortland
10h 05m
1 stop
SFO1:00 pmSan Francisco
$367
Southwest
Aug 24
SFO7:55 pmSan Francisco
11h 00m
2 stops
PWM9:55 amPortland
Aug 31
PWM5:55 amPortland
10h 05m
1 stop
SFO1:00 pmSan Francisco
$372
Southwest
Sep 25
SFO10:30 pmSan Francisco
8h 25m
1 stop
PWM9:55 amPortland
Oct 7
PWM10:25 amPortland
11h 55m
2 stops
SFO7:20 pmSan Francisco
$373

Delta flights from San Francisco to Portland, Maine

Our best Delta deals on San Francisco to Portland, Maine flight tickets
Delta
Sep 10
SFO11:35 amSan Francisco
9h 21m
1 stop
PWM11:56 pmPortland
Sep 14
PWM4:20 pmPortland
11h 06m
1 stop
SFO12:26 amSan Francisco
$394
Delta
Jul 24
SFO11:59 pmSan Francisco
9h 51m
1 stop
PWM12:50 pmPortland
Sep 5
PWM11:50 amPortland
8h 25m
1 stop
SFO5:15 pmSan Francisco
$424
Delta
Aug 18
SFO8:59 pmSan Francisco
10h 46m
2 stops
PWM10:45 amPortland
Aug 25
PWM4:47 pmPortland
8h 00m
1 stop
SFO9:47 pmSan Francisco
$426

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Portland, Maine 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, momondo users made 832,500 searches. Data last updated June 28, 2026.
Use the filters below to find and compare flights from San Francisco to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 8/18

11:59 pm-1:45 pm

1 stop10h 46m

Portland

Tue 8/25

1:25 pm-7:13 pm

1 stop8h 48m

$352
Quickest round-trip

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 9/16

10:15 pm-9:08 am

1 stop7h 53m

Portland

Sun 9/20

7:30 am-11:05 am

Nonstop6h 35m

$359

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 8/24

10:30 pm-9:55 am

1 stop8h 25m

Portland

Mon 8/31

5:55 am-1:00 pm

1 stop10h 05m

$367

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 8/3

6:00 am-6:34 pm

1 stop9h 34m

Portland

Thu 8/13

3:06 pm-9:09 pm

1 stop9h 03m

$368

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 8/12

11:49 am-12:59 am

1 stop10h 10m

Portland

Fri 8/21

6:00 am-12:19 pm

1 stop9h 19m

$369

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 8/24

7:55 pm-9:55 am

2 stops11h 00m

Portland

Mon 8/31

5:55 am-1:00 pm

1 stop10h 05m

$372

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Sun 9/27

11:40 pm-12:25 pm

2 stops9h 45m

Portland

Tue 10/6

5:50 am-1:05 pm

1 stop10h 15m

$373

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 8/12

10:30 pm-9:50 am

1 stop8h 20m

Portland

Wed 8/19

5:45 am-2:05 pm

2 stops11h 20m

$374

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 8/7

11:59 pm-1:45 pm

1 stop10h 46m

Portland

Tue 8/18

1:25 pm-10:11 pm

1 stop11h 46m

$377

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 9/25

7:55 pm-9:55 am

2 stops11h 00m

Portland

Wed 10/7

10:25 am-7:20 pm

2 stops11h 55m

$378

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Portland from

How to get the cheapest flight ticket from San Francisco to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San Francisco and Portland, Maine?

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from San Francisco is in January. Flight prices, which tend to average around $343, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $387.

What is the cheapest San Francisco to Portland flight route?

Fly from San Francisco to Portland for the best San Francisco - Portland flight prices

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

You are more likely to see cheaper flights to Portland, Maine from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $514 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from San Francisco for as low as $359 on momondo.

What cabin class options are available on San Francisco to Portland, Maine flights?

There are 3 cabin classes available to choose from on San Francisco to Portland, Maine flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to Portland, Maine flights?

You could potentially save up to 11% on your flight if you consider stops on a San Francisco to Portland, Maine flight.

How have San Francisco to Portland, Maine flight prices changed over time?

As of June 2026, prices for San Francisco to Portland, Maine flights are approximately 4% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Portland, Maine (SFO to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Portland, Maine

Best Price Found

$349

Fastest flight time

5h 47m

Direct flights

Sun

Airports in Portland, Maine

1 airport
The best flight deal from San Francisco to Portland, Maine found on momondo in the last 72 hours is $349
The fastest flight from San Francisco to Portland, Maine takes 5h 47m
Direct flights go from San Francisco to Portland, Maine on Sunday. There are no airlines offering direct flights.
There is 1 airport in Portland, Maine. From San Francisco there are direct flights to Portland (PWM).
Search flight deals

Frequently asked questions about flying from San Francisco to Portland, Maine

  • How far is San Francisco to Portland by plane?

    The distance between San Francisco and Portland is about 2713.5 mi. By plane, this route typically takes 5h 47m.

  • When did momondo last update prices for flights from San Francisco Airport to Portland Airport?

    Prices for flights from San Francisco Airport to Portland Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Francisco Airport to Portland Airport?

  • How old do you have to be to fly from San Francisco Airport to Portland Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Francisco to Portland, Maine?

  • What is the most popular airline from San Francisco to Portland, Maine?

Best airlines flying from San Francisco to Portland, Maine

Compare and see reviews for airlines that fly from San Francisco to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $246Free CancellationRating
7.1
11,774 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.8
8,455 reviews
Search Delta flights
JetBluePriceFrom $292Free CancellationRating
7.1
3,012 reviews
Search JetBlue flights
SouthwestPriceFrom $293Free CancellationRating
7.9
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $325Free CancellationRating
7.4
9,899 reviews
Search United Airlines flights

  • United Airlines Flights From San Francisco to Portland, Maine

    The lowest priced United Airlines flight from San Francisco to Portland, Maine from the last 72 hours was $325. Generally, United Airlines has 1 flight on this route every week with an average price of $643. United Airlines is rated 7.4/10 by our users.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Lewiston
Brunswick
Conway
Freeport
Bartlett
Auburn
Gorham
Windham
Intervale
Bath
Oxford
Falmouth
Georgetown
Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Portland?

It is quick and easy to find San Francisco to Portland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portland that suits you.

Can I find flights from San Francisco to Portland with flexible booking policies on momondo?

Flights from San Francisco to Portland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Francisco to Portland?

Once you have performed a search for San Francisco to Portland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Francisco to Portland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Francisco to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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