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PWM - SFO

$122 Find cheap flights from Portland, Maine to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to San Francisco departing on 7/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/27
Thu 7/4

Search hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to San Francisco, as well as popular online travel agencies
In the last 7 days travelers have searched 42,816,550 times on KAYAK, and here is why:

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Cheap flight deals from Portland to San Francisco (PWM-SFO)

 
These are the cheapest deals for flights from Portland to San Francisco currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Portland to San Francisco

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Portland to San Francisco.

Recent one-way flight deals from Portland to San Francisco

Only flying one-way? Below are some of the best one-way flight deals from Portland to San Francisco found on KAYAK recently.

Recent last minute flight deals from Portland to San Francisco

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Portland to San Francisco.

Recent direct flight deals from Portland to San Francisco

The latest deals for direct flights from Portland to San Francisco so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Portland to San Francisco

Find recent round-trip train or bus tickets from Portland to San Francisco.

All round-trip flight deals to San Francisco

The cheapest plane tickets to San Francisco found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
1:16 pm - 8:59 pmPWM-SFO
10h 43m1 stop
11:59 pm - 11:46 amSFO-PWM
8h 47m1 stop
$245American Airlines
Find Deal
Fri, Sep 27 - Mon, Sep 30
2:38 pm - 10:45 pmPWM-SFO
11h 07m1 stop
9:16 am - 10:53 pmSFO-PWM
10h 37m2 stops
$248American Airlines
Find Deal
Sat, Sep 28 - Tue, Oct 1
6:05 am - 2:18 pmPWM-SFO
11h 13m1 stop
12:20 am - 10:43 amSFO-PWM
7h 23m1 stop
$256Delta
Find Deal
Sat, Sep 28 - Mon, Sep 30
5:30 am - 2:18 pmPWM-SFO
11h 48m2 stops
12:20 am - 10:43 amSFO-PWM
7h 23m1 stop
$261Delta
Find Deal
Sat, Sep 28 - Mon, Sep 30
6:11 am - 1:25 pmPWM-SFO
10h 14m1 stop
6:40 pm - 7:55 amSFO-PWM
10h 15m2 stops
$351United Airlines
Find Deal
Sat, Aug 17 - Fri, Aug 23
6:11 am - 3:25 pmPWM-SFO
12h 14m2 stops
6:40 pm - 7:55 amSFO-PWM
10h 15m2 stops
$356United Airlines
Find Deal
Sat, Aug 17 - Fri, Aug 23
1:03 pm - 2:07 pmPWM-SFO
28h 04m1 stop
5:50 pm - 10:48 amSFO-PWM
13h 58m1 stop
$395Sun Country Air
Find Deal
Mon, Jul 1 - Fri, Jul 5
1:16 pm - 8:18 amPWM-SFO
22h 02m1 stop
6:17 pm - 11:15 amSFO-PWM
13h 58m1 stop
$480Sun Country Air
Find Deal
Sun, Jun 9 - Fri, Jun 21
9:45 am - 7:26 pmPWM-SFO
12h 41m1 stop
8:35 pm - 8:49 amSFO-PWM
9h 14m1 stop
$507JetBlue
Find Deal
Thu, Jul 25 - Mon, Jul 29
9:45 am - 4:09 pmPWM-SFO
9h 24m1 stop
8:35 pm - 8:49 amSFO-PWM
9h 14m1 stop
$520JetBlue
Find Deal
Tue, Jun 18 - Tue, Jun 25
1:08 pm - 9:28 pmPWM-SFO
11h 20m1 stop
$122American Airlines
Find Deal
Wed, Jul 24
4:03 pm - 12:29 amPWM-SFO
11h 26m2 stops
$127American Airlines
Find Deal
Wed, Sep 11
6:15 am - 12:21 pmPWM-SFO
9h 06m1 stop
$128Delta
Find Deal
Sun, Sep 1
5:37 am - 1:29 pmPWM-SFO
10h 52m2 stops
$133Delta
Find Deal
Fri, Aug 30
12:01 pm - 10:52 pmPWM-SFO
13h 51m1 stop
$168Sun Country Air
Find Deal
Sat, Jun 15
5:50 am - 12:13 pmPWM-SFO
9h 23m1 stop
$172American Airlines
Find Deal
Fri, Aug 30
12:07 pm - 10:31 amPWM-SFO
25h 24m1 stop
$198Sun Country Air
Find Deal
Sat, Jul 13
4:50 pm - 12:59 amPWM-SFO
11h 09m1 stop
$223United Airlines
Find Deal
Mon, Jun 10
5:30 am - 11:05 amPWM-SFO
8h 35m1 stop
$233United Airlines
Find Deal
Mon, Sep 30
9:45 am - 4:09 pmPWM-SFO
9h 24m1 stop
$325JetBlue
Find Deal
Wed, Jul 24
6:05 am - 6:28 pmPWM-SFO
15h 23m2 stops
8:05 pm - 10:45 amSFO-PWM
11h 40m2 stops
$555Delta
Find Deal
Sat, Jun 1 - Sun, Jun 9
5:00 am - 11:03 amPWM-SFO
9h 03m1 stop
10:55 pm - 12:33 pmSFO-PWM
10h 38m1 stop
$578Delta
Find Deal
Sat, Jun 1 - Tue, Jun 11
11:55 am - 6:27 pmPWM-SFO
9h 32m1 stop
1:10 am - 2:21 pmSFO-PWM
10h 11m1 stop
$598United Airlines
Find Deal
Sat, Jun 1 - Mon, Jun 10
12:21 pm - 8:06 pmPWM-SFO
10h 45m1 stop
11:16 am - 12:52 amSFO-PWM
10h 36m2 stops
$636American Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 8
12:21 pm - 7:49 pmPWM-SFO
10h 28m1 stop
11:20 am - 1:07 amSFO-PWM
10h 47m2 stops
$640American Airlines
Find Deal
Sun, Jun 2 - Mon, Jun 10
12:21 pm - 10:20 pmPWM-SFO
12h 59m2 stops
11:16 am - 12:52 amSFO-PWM
10h 36m2 stops
$641American Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 8
7:45 am - 4:27 pmPWM-SFO
11h 42m2 stops
11:20 am - 1:07 amSFO-PWM
10h 47m2 stops
$690American Airlines
Find Deal
Sun, Jun 2 - Mon, Jun 10
5:00 am - 11:03 amPWM-SFO
9h 03m1 stop
5:59 pm - 10:45 amSFO-PWM
13h 46m1 stop
$714Delta
Find Deal
Sat, Jun 1 - Sun, Jun 9
11:55 am - 6:27 pmPWM-SFO
9h 32m1 stop
9:04 pm - 10:32 amSFO-PWM
10h 28m1 stop
$750United Airlines
Find Deal
Sat, Jun 1 - Fri, Jun 7
5:30 am - 11:01 amPWM-SFO
8h 31m1 stop
9:30 pm - 8:24 amSFO-PWM
7h 54m1 stop
$794United Airlines
Find Deal
Sun, Jun 2 - Tue, Jun 11

Flights from Portland to San Francisco - Travel Insights & Trends

Get data-powered insights and trends into flights from Portland to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Portland to San Francisco?

The average price of all flights from Portland, Maine to San Francisco clicked on KAYAK for each day over the last 12 months.
For Portland to San Francisco, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from San Francisco back to Portland, the best deals are generally found on Tuesday, with Saturday being the most expensive.

What is the cheapest month to fly from Portland, Maine to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portland, Maine to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Portland, Maine to San Francisco is September, where tickets cost $335 on average. On the other hand, the most expensive months are April and May, where the average cost of tickets is $800 and $694 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Portland, Maine to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Portland, Maine to San Francisco, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 10 days before departure.

Which airlines provide the cheapest flights from Portland to San Francisco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, American Airlines offered the best one-way deal for that route, at $122. KAYAK users also found Portland to San Francisco round-trip flights on American Airlines from $245 and on Delta from $256.

Good to know

Low season

February

High season

June

Cheapest flight

$122
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Portland to San Francisco

When to book flights from Portland to San Francisco

Are your dates flexible? Find out the best times to travel from Portland to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to San Francisco

  • What is the cheapest flight from Portland, Maine to San Francisco?

    In the last 3 days, the lowest price for a flight from Portland, Maine to San Francisco was $122 for a one-way ticket and $245 for a round-trip.

  • Do I need a passport to fly between Portland and San Francisco?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Portland to San Francisco?

    When flying out of Portland you will be using Portland. You will be landing at San Francisco, also known as San Francisco.

  • Which aircraft models fly most regularly from Portland to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to San Francisco?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Portland and San Francisco, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Portland to San Francisco, Delta or JetBlue?

    The two airlines most popular with KAYAK users for flights from Portland to San Francisco are Delta and JetBlue. With an average price for the route of $437 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $371 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Portland to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Portland with another airline. Booking your flights between Portland and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Portland to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Portland to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10502 reviews
8.2Boarding
7.9Comfort
8.0Entertainment
7.4Food
8.6Crew
Airline reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

8.0 ExcellentLiam, May 2024SLC - SJC
Read more about Delta reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Delta did an awful job w logistics at DTW. Missed connection. We were there an hour early. SUCKED

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight was delayed by almost 5 hours. Suitcase was not loaded despite the flight being near empty (my colleagues’ suitcases did reach JFK, unlike mine). Had to argue on phone to get JetBlue to deliver the case to my hotel. Never again

The flight was excellent. The crew was welcoming and attentive.

Great! I love Jet Blue. My favorite airline! Very efficient, clean and timely.

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

We were told that our flight would be delayed for 90+ minutes because of weather, so we went to get something to eat only to have them randomly start boarding 15 minutes after the announcement, with no warning.

Entertainment... No earphones passed out. Many including me couldn't use the TV. Legroom was good. Crew was indifferent and a bit surly. Free wifi was a nice convenience. Check in desk location was unknown. Gate number on the boarding passes was wrong.

Going through JFK’s security is a mess. The TSA security said no shoes on the bins. So, we place our shoes in the belt and they came out all over the belt. Boarding was delayed and Flight as well.

Safe and on time were the positives. The plane wasn't cleaned before boarding, there was garbage and food on the floor and in the seat pocket. The TV screen was small and the picture fuzzy, audio quality was poor. Seatbelt was fraying and seat did not recline properly. No charging ports near the seats,

Confusing. Delay updates were out of whack At one point it said my flight was 25 hours. Three gate changes and two delays only to change back to original departure time. Gate announcer and on board flight attendant (Alejandro) making the announcements was impossible to understand due to accent and speed of speech. After beverage service the rear flight attendants sat back there on their phones. No refills no checking in, one sweep through for trash collection. Very impersonal. Bring back Coke products

Delayed departure. Delayed after landing pulling into gate. Delay due to sky bridge malfunction

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

United airline kept delaying our flight back to Phoenix for 8 hours before they cancelled it! If they know that we are not flying out for whatever the reason is, why did they keep lying to us for hours. We could find another flight earlier or even find a hotel with a shuttle. But cancellation at about midnight was not fun. We stayed in the airport all night till the following morning when we bought an Alaska tickets to go back to Phoenix. Total of 14 hours in the airport.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

There were delays on both ends. It made it less than excellent. This plane was great though

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Somehow I got “offloaded” even though I had my boarding pass and was in transit Food is horrible Staff were nice and cheerful No headphones were provided on 11 hours flight

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

The staff were very helpful with lots of refreshments on offer. The toilets were clean. The seats were comfortable and entertainment was good. No complaints, it was excellent.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

Book cheap flights from Portland to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Portland to San Francisco found on KAYAK in the last 72 hours.
7/24Wed
1 stopAmerican Airlines
11h 20mPWM-SFO
$122
9/11Wed
2 stopsAmerican Airlines
11h 26mPWM-SFO
$127
9/1Sun
1 stopDelta
9h 06mPWM-SFO
$128
8/30Fri
2 stopsDelta
10h 52mPWM-SFO
$133
6/15Sat
1 stopSun Country Air
13h 51mPWM-SFO
$168
8/30Fri
1 stopAmerican Airlines
9h 23mPWM-SFO
$172
7/13Sat
1 stopSun Country Air
25h 24mPWM-SFO
$198
6/10Mon
1 stopUnited Airlines
11h 09mPWM-SFO
$223
9/30Mon
1 stopUnited Airlines
8h 35mPWM-SFO
$233
7/24Wed
1 stopJetBlue
9h 24mPWM-SFO
$325

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Last minute flights from Portland to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Portland to San Francisco that are departing in the next 10 days.
6/1Sat
multi-stopDelta
15h 23mPWM-SFO
6/9Sun
multi-stopDelta
11h 40mSFO-PWM
$555
6/1Sat
multi-stopDelta
9h 03mPWM-SFO
6/11Tue
multi-stopDelta
10h 38mSFO-PWM
$578
6/1Sat
multi-stopUnited Airlines
9h 32mPWM-SFO
6/10Mon
multi-stopUnited Airlines
10h 11mSFO-PWM
$598
6/1Sat
multi-stopAmerican Airlines
10h 45mPWM-SFO
6/8Sat
multi-stopAmerican Airlines
10h 36mSFO-PWM
$636
6/2Sun
multi-stopAmerican Airlines
10h 28mPWM-SFO
6/10Mon
multi-stopAmerican Airlines
10h 47mSFO-PWM
$640
6/1Sat
multi-stopAmerican Airlines
12h 59mPWM-SFO
6/8Sat
multi-stopAmerican Airlines
10h 36mSFO-PWM
$641
6/2Sun
multi-stopAmerican Airlines
11h 42mPWM-SFO
6/10Mon
multi-stopAmerican Airlines
10h 47mSFO-PWM
$690
6/1Sat
multi-stopDelta
9h 03mPWM-SFO
6/9Sun
multi-stopDelta
13h 46mSFO-PWM
$714
6/1Sat
multi-stopUnited Airlines
9h 32mPWM-SFO
6/7Fri
multi-stopUnited Airlines
10h 28mSFO-PWM
$750
6/2Sun
multi-stopUnited Airlines
8h 31mPWM-SFO
6/11Tue
multi-stopUnited Airlines
7h 54mSFO-PWM
$794

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Portland - San Francisco Flights

Departure:

Portland (PWM)United States

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Portland

Cabin classes: