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Cheap flights from San Francisco to Portland from $185

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 7/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Francisco to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
10:30 pm - 9:50 am
SFO
-
PWM
8h 20m
1 stop
Southwest Logo
5:45 am - 11:35 am
PWM
-
SFO
8h 50m
1 stop
$340Southwest
Wed, Sep 9 - Wed, Sep 16
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
$345Southwest
Wed, Sep 9 - Wed, Sep 16
American Airlines Logo
8:00 am - 10:00 pm
SFO
-
PWM
11h 00m
1 stop
American Airlines Logo
7:22 am - 2:38 pm
PWM
-
SFO
10h 16m
1 stop
$369American Airlines
Wed, Aug 12 - Wed, Aug 19
Southwest Logo
7:40 am - 9:10 pm
SFO
-
PWM
10h 30m
2 stops
Southwest Logo
5:45 am - 11:35 am
PWM
-
SFO
8h 50m
1 stop
$374Southwest
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
11:30 pm - 12:40 pm
SFO
-
PWM
10h 10m
2 stops
American Airlines Logo
8:00 am - 4:02 pm
PWM
-
SFO
11h 02m
2 stops
$379American Airlines
Tue, Aug 18 - Tue, Aug 25
Southwest Logo
5:50 am - 10:10 pm
SFO
-
PWM
13h 20m
1 stop
Southwest Logo
5:30 am - 1:40 pm
PWM
-
SFO
11h 10m
2 stops
$380Southwest
Mon, Jul 6 - Wed, Jul 15
Delta Logo
12:35 am - 10:43 am
SFO
-
PWM
7h 08m
1 stop
Delta Logo
6:00 am - 12:19 pm
PWM
-
SFO
9h 19m
1 stop
$393Delta
Sun, Jul 5 - Tue, Jul 21
Southwest Logo
10:30 pm - 9:55 am
SFO
-
PWM
8h 25m
1 stop
Southwest Logo
5:40 am - 3:50 pm
PWM
-
SFO
13h 10m
2 stops
$398Southwest
Tue, Aug 4 - Sat, Aug 15
American Airlines Logo
10:50 pm - 12:40 pm
SFO
-
PWM
10h 50m
2 stops
American Airlines Logo
8:00 am - 4:02 pm
PWM
-
SFO
11h 02m
2 stops
$399American Airlines
Mon, Aug 24 - Sat, Aug 29
United Airlines Logo
10:35 pm - 9:23 am
SFO
-
PWM
7h 48m
1 stop
United Airlines Logo
6:00 am - 11:44 am
PWM
-
SFO
8h 44m
1 stop
$400United Airlines
Fri, Jun 5 - Wed, Jun 10

United Airlines flights from San Francisco to Portland, Maine

Our best United Airlines deals on San Francisco to Portland, Maine flight tickets
United Airlines
Jun 5
SFO10:35 pmSan Francisco
7h 48m
1 stop
PWM9:23 amPortland
Jun 10
PWM6:00 amPortland
8h 44m
1 stop
SFO11:44 amSan Francisco
$400
United Airlines
Jun 13
SFO9:30 pmSan Francisco
9h 37m
1 stop
PWM10:07 amPortland
Jun 20
PWM6:00 amPortland
8h 25m
1 stop
SFO11:25 amSan Francisco
$431
United Airlines
May 26
SFO5:05 amSan Francisco
9h 39m
1 stop
PWM5:44 pmPortland
Jun 3
PWM6:00 amPortland
8h 25m
1 stop
SFO11:25 amSan Francisco
$519

Delta flights from San Francisco to Portland, Maine

Our best Delta deals on San Francisco to Portland, Maine flight tickets
Delta
Jul 5
SFO12:35 amSan Francisco
7h 08m
1 stop
PWM10:43 amPortland
Jul 21
PWM6:00 amPortland
9h 19m
1 stop
SFO12:19 pmSan Francisco
$393
Delta
May 29
SFO11:59 pmSan Francisco
8h 56m
1 stop
PWM11:55 amPortland
Jun 4
PWM6:00 amPortland
8h 45m
1 stop
SFO11:45 amSan Francisco
$409
Delta
Aug 20
SFO12:12 amSan Francisco
7h 33m
1 stop
PWM10:45 amPortland
Aug 29
PWM6:30 amPortland
16h 09m
2 stops
SFO7:39 pmSan Francisco
$432

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 May 13, 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

Wed 9/9

10:30 pm-9:50 am

1 stop8h 20m

Portland

Wed 9/16

5:45 am-11:35 am

1 stop8h 50m

$340

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 9/9

10:30 pm-9:50 am

1 stop8h 20m

Portland

Wed 9/16

5:45 am-2:05 pm

2 stops11h 20m

$345

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 8/12

8:00 am-10:00 pm

1 stop11h 00m

Portland

Wed 8/19

7:22 am-2:38 pm

1 stop10h 16m

$369

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Wed 8/12

7:40 am-9:10 pm

2 stops10h 30m

Portland

Wed 8/19

5:45 am-11:35 am

1 stop8h 50m

$374

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 8/18

11:30 pm-12:40 pm

2 stops10h 10m

Portland

Tue 8/25

8:00 am-4:02 pm

2 stops11h 02m

$379

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 7/6

5:50 am-10:10 pm

1 stop13h 20m

Portland

Wed 7/15

5:30 am-1:40 pm

2 stops11h 10m

$380
Quickest round-trip

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Sun 7/5

12:35 am-10:43 am

1 stop7h 08m

Portland

Tue 7/21

6:00 am-12:19 pm

1 stop9h 19m

$393

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Tue 8/4

10:30 pm-9:55 am

1 stop8h 25m

Portland

Sat 8/15

5:40 am-3:50 pm

2 stops13h 10m

$398

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Mon 8/24

10:50 pm-12:40 pm

2 stops10h 50m

Portland

Sat 8/29

8:00 am-4:02 pm

2 stops11h 02m

$399

San FranciscoPortland

SFO - PWM

SFOPWM

San Francisco

Fri 6/5

10:35 pm-9:23 am

1 stop7h 48m

Portland

Wed 6/10

6:00 am-11:44 am

1 stop8h 44m

$400

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $334, 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 $493 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 $374 on momondo.

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

As of May 2026, prices for San Francisco to Portland, Maine flights are approximately 3% 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

Fastest flight time

5h 47m

Direct flights

Sun

Airports in Portland, Maine

1 airport
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
DeltaPriceFrom $138Free CancellationRating
7.9
8,450 reviews
Search Delta flights
SouthwestPriceFrom $190Free CancellationRating
7.9
4,296 reviews
Search Southwest flights
American AirlinesPriceFrom $250Free CancellationRating
7.1
11,662 reviews
Search American Airlines flights
JetBluePriceFrom $291Free CancellationRating
7.1
2,973 reviews
Search JetBlue flights
United AirlinesPriceFrom $325Free CancellationRating
7.4
9,706 reviews
Search United Airlines flights

Traveling to a place near Portland?

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