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Cheap flights from San Francisco to Portland from $124

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 10/3. 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.
Southwest Logo
10:30 pm - 11:15 amSFO  San Francisco-PWM Portland
9h 45m1 stop Baltimore/Washington
Southwest Logo
5:35 am - 12:20 pmPWM  Portland-SFO San Francisco
9h 45m1 stop Baltimore/Washington
$313Southwest
Sat, Sep 5 - Sat, Oct 3
Southwest Logo
10:30 pm - 10:35 amSFO  San Francisco-PWM Portland
9h 05m1 stop Baltimore/Washington
Southwest Logo
5:35 am - 12:20 pmPWM  Portland-SFO San Francisco
9h 45m1 stop Baltimore/Washington
$313Southwest
Sat, Sep 26 - Sat, Oct 3
United Airlines Logo
8:44 am - 5:31 pmSFO  San Francisco-PWM Portland
5h 47mnonstop
United Airlines Logo
7:30 am - 11:05 amPWM  Portland-SFO San Francisco
6h 35mnonstop
$359United Airlines
Sat, Sep 12 - Sun, Sep 20
United Airlines Logo
8:44 am - 5:31 pmSFO  San Francisco-PWM Portland
5h 47mnonstop
United Airlines Logo
7:30 am - 11:05 amPWM  Portland-SFO San Francisco
6h 35mnonstop
$359United Airlines
Sat, Sep 12 - Sun, Sep 20
American Airlines Logo
10:51 am - 10:36 pmSFO  San Francisco-PWM Portland
8h 45m1 stop Charlotte Douglas
American Airlines Logo
4:40 pm - 10:59 pmPWM  Portland-SFO San Francisco
9h 19m1 stop Philadelphia
$379American Airlines
Wed, Oct 14 - Tue, Oct 20
American Airlines Logo
9:46 am - 9:56 pmSFO  San Francisco-PWM Portland
9h 10m1 stop Philadelphia
American Airlines Logo
2:03 pm - 9:52 pmPWM  Portland-SFO San Francisco
10h 49m1 stop Chicago O'Hare Intl
$379American Airlines
Wed, Sep 16 - Wed, Sep 23
Delta Logo
11:45 am - 12:10 amSFO  San Francisco-PWM Portland
9h 25m1 stop New York John F Kennedy Intl
Delta Logo
6:04 am - 3:05 pmPWM  Portland-SFO San Francisco
12h 01m1 stop New York John F Kennedy Intl
$379Delta
Wed, Oct 14 - Wed, Oct 21
Delta Logo
12:05 am - 10:45 amSFO  San Francisco-PWM Portland
7h 40m1 stop Minneapolis St Paul
Delta Logo
6:02 am - 12:51 pmPWM  Portland-SFO San Francisco
9h 49m1 stop New York John F Kennedy Intl
$379Delta
Wed, Sep 16 - Sat, Sep 26
Multiple Airlines Logo
12:47 pm - 10:38 pmSFO  San Francisco-PWM Portland
30h 51m1 stop Cincinnati Cinci./N. Kentucky
Multiple Airlines Logo
7:00 am - 10:25 amPWM  Portland-SFO San Francisco
30h 25m2 stops Cincinnati Cinci./N. Kentucky Las Vegas Harry Reid Intl
$418Multiple Airlines
Thu, Aug 27 - Mon, Aug 31
Breeze Airways Logo
12:47 pm - 10:38 pmSFO  San Francisco-PWM Portland
30h 51m1 stop Cincinnati Cinci./N. Kentucky
Breeze Airways Logo
7:00 am - 12:02 pmPWM  Portland-SFO San Francisco
32h 02m1 stop Cincinnati Cinci./N. Kentucky
$424Breeze Airways
Thu, Aug 27 - Mon, Aug 31

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Delta flights from San Francisco to Portland, Maine

Our best Delta deals on San Francisco to Portland, Maine flight tickets
Delta
Sep 26
SFO8:59 pmSan Francisco
10h 46m
2 stops
PWM10:45 amPortland
Oct 3
PWM2:35 pmPortland
11h 51m
1 stop
SFO11:26 pmSan Francisco
$384
Delta
Sep 16
SFO6:00 amSan Francisco
14h 28m
2 stops
PWM11:28 pmPortland
Sep 23
PWM11:50 amPortland
12h 59m
2 stops
SFO9:49 pmSan Francisco
$389
Delta
Aug 28
SFO11:49 amSan Francisco
10h 10m
1 stop
PWM12:59 amPortland
Sep 3
PWM4:47 pmPortland
8h 00m
1 stop
SFO9:47 pmSan Francisco
$419

United Airlines flights from San Francisco to Portland, Maine

Our best United Airlines deals on San Francisco to Portland, Maine flight tickets
United Airlines
Sep 12
SFO8:44 amSan Francisco
5h 47m
PWM5:31 pmPortland
Sep 20
PWM7:30 amPortland
6h 35m
SFO11:05 amSan Francisco
$359
United Airlines
Sep 12
SFO10:35 pmSan Francisco
8h 29m
1 stop
PWM10:04 amPortland
Sep 20
PWM7:30 amPortland
6h 35m
SFO11:05 amSan Francisco
$369
United Airlines
Sep 19
SFO10:35 pmSan Francisco
8h 29m
1 stop
PWM10:04 amPortland
Sep 26
PWM6:00 amPortland
8h 25m
1 stop
SFO11:25 amSan Francisco
$374

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 August 11, 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 San Francisco - PWM Portland

SFOPWM

San Francisco

Sat 9/5

10:30 pm-11:15 am

1 stop9h 45m

Portland

Sat 10/3

5:35 am-12:20 pm

1 stop9h 45m

$313

San FranciscoPortland

SFO San Francisco - PWM Portland

SFOPWM

San Francisco

Sat 9/26

10:30 pm-10:35 am

1 stop9h 05m

Portland

Sat 10/3

5:35 am-12:20 pm

1 stop9h 45m

$313
Quickest round-trip

San FranciscoPortland

SFO San Francisco - PWM Portland

SFOPWM

San Francisco

Sat 9/12

8:44 am-5:31 pm

Nonstop5h 47m

Portland

Sun 9/20

7:30 am-11:05 am

Nonstop6h 35m

$359

San FranciscoPortland

SFO San Francisco - PWM Portland

SFOPWM

San Francisco

Sat 9/12

8:44 am-5:31 pm

Nonstop5h 47m

Portland

Sun 9/20

7:30 am-11:05 am

Nonstop6h 35m

$359

San FranciscoPortland

SFO San Francisco - PWM Portland

SFOPWM

San Francisco

Wed 10/14

10:51 am-10:36 pm

1 stop8h 45m

Portland

Tue 10/20

4:40 pm-10:59 pm

1 stop9h 19m

$379

San FranciscoPortland

SFO San Francisco - PWM Portland

SFOPWM

San Francisco

Wed 9/16

9:46 am-9:56 pm

1 stop9h 10m

Portland

Wed 9/23

2:03 pm-9:52 pm

1 stop10h 49m

$379

San FranciscoPortland

SFO San Francisco - PWM Portland

SFOPWM

San Francisco

Wed 10/14

11:45 am-12:10 am

1 stop9h 25m

Portland

Wed 10/21

6:04 am-3:05 pm

1 stop12h 01m

$379

San FranciscoPortland

SFO San Francisco - PWM Portland

SFOPWM

San Francisco

Wed 9/16

12:05 am-10:45 am

1 stop7h 40m

Portland

Sat 9/26

6:02 am-12:51 pm

1 stop9h 49m

$379

San FranciscoPortland

SFO San Francisco - PWM Portland

SFOPWM

San Francisco

Thu 8/27

12:47 pm-10:38 pm

1 stop30h 51m

Portland

Mon 8/31

7:00 am-10:25 am

2 stops30h 25m

$418

San FranciscoPortland

SFO San Francisco - PWM Portland

SFOPWM

San Francisco

Thu 8/27

12:47 pm-10:38 pm

1 stop30h 51m

Portland

Mon 8/31

7:00 am-12:02 pm

1 stop32h 02m

$424

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?

Prices are currently low for flights on this route.

Typical prices usually range from $408 to $750.
The lowest price recently found on this route was $313.

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 $538 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 $421 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 18% 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 August 2026, prices for San Francisco to Portland, Maine flights are approximately 0% 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

$398

Fastest flight time

5h 47m

Direct flights

Sun

Airports in Portland, Maine

1 airport
The best one-way flight to Portland, Maine from San Francisco in the past 72 hours is $398. The best round-trip flight deal from San Francisco to Portland, Maine found on momondo in the last 72 hours is $538.
The fastest flight from San Francisco to Portland, Maine takes 5h 47m
Direct flights go from San Francisco to Portland, Maine on Sunday. The only airline offering direct flights is United Airlines.
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 $250Free CancellationRating
7.1
11,904 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.8
8,505 reviews
Search Delta flights
JetBluePriceFrom $292Free CancellationRating
7.1
3,034 reviews
Search JetBlue flights
SouthwestPriceFrom $304Free CancellationRating
8.0
4,220 reviews
Search Southwest flights
United AirlinesPriceFrom $331Free CancellationRating
7.4
10,104 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
Lewiston
Brunswick
Freeport
Gorham
Auburn
Bartlett
Conway
Windham
Bath
Intervale
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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