Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

PWM - SFO

Find cheap flights from Portland to San Francisco from $98

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 9/11. 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
Sun 5/26
Sun 6/2

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 44,738,066 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:03 pm - 10:49 pmPWM-SFO
8h 46m1 stop
12:25 am - 10:43 amSFO-PWM
7h 18m1 stop
$256Delta
Find Deal
Thu, Sep 5 - Fri, Sep 6
5:13 pm - 10:48 pmPWM-SFO
8h 35m1 stop
1:47 pm - 12:42 amSFO-PWM
7h 55m1 stop
$283American Airlines
Find Deal
Thu, Sep 12 - Sat, Sep 21
6:48 am - 3:24 pmPWM-SFO
11h 36m1 stop
8:00 am - 10:14 pmSFO-PWM
11h 14m2 stops
$289American Airlines
Find Deal
Thu, Sep 12 - Sat, Sep 21
5:13 pm - 10:48 pmPWM-SFO
8h 35m1 stop
1:47 pm - 12:32 amSFO-PWM
7h 45m1 stop
$333American Airlines
Find Deal
Tue, Aug 20 - Sat, Aug 24
5:30 am - 2:06 pmPWM-SFO
11h 36m2 stops
11:35 am - 11:06 pmSFO-PWM
8h 31m1 stop
$351Delta
Find Deal
Thu, Sep 5 - Fri, Sep 6
5:30 am - 12:20 pmPWM-SFO
9h 50m1 stop
11:40 pm - 10:27 amSFO-PWM
7h 47m1 stop
$406United Airlines
Find Deal
Thu, Oct 17 - Fri, Oct 25
5:30 am - 4:54 pmPWM-SFO
14h 24m2 stops
10:40 pm - 1:48 pmSFO-PWM
12h 08m2 stops
$416United Airlines
Find Deal
Thu, Sep 5 - Fri, Sep 6
1:27 pm - 10:56 pmPWM-SFO
12h 29m1 stop
11:59 pm - 12:35 pmSFO-PWM
9h 36m1 stop
$430Sun Country Air
Find Deal
Fri, Aug 9 - Sun, Aug 11
1:33 pm - 8:11 amPWM-SFO
21h 38m1 stop
6:05 pm - 12:48 pmSFO-PWM
15h 43m1 stop
$475Sun Country Air
Find Deal
Thu, Jul 18 - Sun, Jul 21
2:19 pm - 11:58 pmPWM-SFO
12h 39m1 stop
10:19 pm - 1:24 pmSFO-PWM
12h 05m1 stop
$560JetBlue
Find Deal
Wed, May 8 - Fri, May 10

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 January, where tickets cost $323 on average. On the other hand, the most expensive months are June and November, where the average cost of tickets is $668 and $625 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 66 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 $98. KAYAK users also found Portland to San Francisco round-trip flights on Delta from $256 and on American Airlines from $283.

Good to know

Low season

February

High season

September

Cheapest flight

$98
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 34% lower on average.
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 $98 for a one-way ticket and $256 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 $525 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 $373 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 10966 reviews
7.9comfort
8.0entertainment
8.2boarding
7.4food
8.6crew
Airline reviews

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

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

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 diverted in SD. Later take off in Seattle by 1.3hrs

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

Great. Loved that there was WiFi on flight to keep in touch and excellent service of beverages and snacks.

Business class is great. New airplane, very comfortable, better than some of the major airlines I am used to

Terrible. Flight was cancelled due to the weather in the east and sout east(florida). Did not get any compesation of any kind. According to them, it was not under their control so I lost all the money paid for the 2 fairs from Raleigh, NC to Orlando, Fl.

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

It took an hour to get my bag after landing. Not exaggerating

I had a horrible experience with TSA at the airport. I had to go through TSA several times as there was some issue each time with a piece if clothing I had on. It was so busy & chaotic that I ended up forgetting my Apple laptop at TSA. It’s been days & I can’t get through to anyone to get useful info on how to get it back. I’m very angry because contacting lost & found shouldn’t be this difficult. Employees should know what is going on at their place of work. It seems no one knows as everyone’s answers are contradictory, or you can’t speak directly to anyone as the calls are automated. Very upsetting.

Everything was good instead change the gates! I missed my first flight because it was changed the gate and I didn’t know!

My experience with Eva sir was good except the long walk in LA Lex, that was inconvenient for my age,

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

the staff was very helpful and the airline was very good.

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.

My experience is based on one crew member. I had found my seat and sat down but there was a gentleman to claimed to the flight attendant I was in his seat. She then came to me and curtly said, "I need your ticket!" No hi, no excuse me may I see your boarding pass? NOTHING! I was taken aback by her attitude and she repeated herself, "your ticket?!?!" I calmly responded with ok, here you go. Only to discover the gentleman was looking at the wrong boarding pass. She gave me back my ticket with no apology. She then was curt with another man who was putting his coat in the overhead bin, already helped by another flight attendant who said it was fine. She realizes it's ok and then asks him if he drinks. The look on the man's face was priceless. She said she was going to comp him drinks. He gets offered a comp drink for a coat as well as an apology, and I got no apology.

Flight cancelled because of the grounded 737s. United was good about it and got us onto a later Alaska Airlines flight to Oakland (not San Francisco as originally intended). Had to go through security again and my wife dropped her MacBook Pro, which broke, a $2,500 whoopsie. But we made it home.

Delays, excuses, delays, and more delays. This company is BROKEN.

Horrible. Delayed on both planes several times. No attempt to fix it

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.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

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.
9/11Wed
1 stopAmerican Airlines
8h 35mPWM-SFO
$98
9/11Wed
2 stopsDelta
13h 42mPWM-SFO
$133
8/30Fri
1 stopDelta
9h 04mPWM-SFO
$163
6/6Thu
1 stopAmerican Airlines
10h 12mPWM-SFO
$167
6/6Thu
1 stopSun Country Air
12h 19mPWM-SFO
$193
6/4Tue
1 stopJetBlue
12h 34mPWM-SFO
$197
7/18Thu
1 stopSun Country Air
21h 38mPWM-SFO
$198
5/8Wed
1 stopUnited Airlines
9h 50mPWM-SFO
$220
7/4Thu
2 stopsUnited Airlines
13h 14mPWM-SFO
$233
5/7Tue
1 stopJetBlue
10h 18mPWM-SFO
$260

Search by stops

Search by airline

Search by price

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.
5/1Wed
multi-stopDelta
10h 54mPWM-SFO
5/10Fri
multi-stopDelta
12h 49mSFO-PWM
$688
5/1Wed
multi-stopDelta
15h 39mPWM-SFO
5/10Fri
multi-stopDelta
12h 49mSFO-PWM
$693
5/1Wed
multi-stopJetBlue
12h 39mPWM-SFO
5/10Fri
multi-stopJetBlue
12h 05mSFO-PWM
$730
5/1Wed
multi-stopUnited Airlines
9h 30mPWM-SFO
5/9Thu
multi-stopUnited Airlines
11h 42mSFO-PWM
$943
5/1Wed
multi-stopDelta
12h 50mPWM-SFO
5/9Thu
multi-stopDelta
10h 31mSFO-PWM
$2,076
5/1Wed
multi-stopDelta
8h 51mPWM-SFO
5/9Thu
multi-stopDelta
10h 02mSFO-PWM
$2,110

Search by stops

Search by airline

Search by price

Portland - San Francisco Flights

Departure:

Portland (PWM)United States

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Portland

Cabin classes: