SFO - PWM

$139 Find Cheap Flights from San Francisco to Portland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Portland departing on 8/31. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Portland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Portland, 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 San Francisco to Portland, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$358
Typical prices: $628-$344
Southwest
Mon 6/8Tue 6/16
SFO - PWM • 2 stops
Cheapest non-stop
$852
United Airlines
Sat 8/8Sun 8/16
SFO - PWM • Non-stop
Nonstop flights
1 day a week
Sat
You can fly direct with United Airlines. Average duration is 0
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $358 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $454 (round-trip)
Shortest trip • 7h 14m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Portland!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Portland (SFO-PWM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Portland 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Portland

Mon, Jun 8 - Tue, Jun 16
Southwest Logo
6:45 pm - 9:55 am
SFO
-
PWM
12h 10m
2 stops
Southwest Logo
1:05 pm - 7:50 pm
PWM
-
SFO
9h 45m
1 stop
$358Southwest
Tue, Sep 1 - Sun, Sep 6
United Airlines Logo
10:35 pm - 10:02 am
SFO
-
PWM
8h 27m
1 stop
United Airlines Logo
7:50 am - 11:23 am
PWM
-
SFO
6h 33mnonstop
$359United Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
6:36 am - 6:53 pm
SFO
-
PWM
9h 17m
1 stop
American Airlines Logo
8:00 am - 2:55 pm
PWM
-
SFO
9h 55m
1 stop
$369American Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
6:36 am - 6:53 pm
SFO
-
PWM
9h 17m
1 stop
American Airlines Logo
8:00 am - 4:02 pm
PWM
-
SFO
11h 02m
2 stops
$374American Airlines
Mon, Jun 8 - Tue, Jun 16
Southwest Logo
6:45 pm - 9:55 am
SFO
-
PWM
12h 10m
2 stops
Southwest Logo
5:30 am - 1:40 pm
PWM
-
SFO
11h 10m
2 stops
$379Southwest
Wed, Jun 3 - Wed, Jun 10
American Airlines Logo
8:15 am - 10:47 pm
SFO
-
PWM
11h 32m
1 stop
American Airlines Logo
3:05 pm - 8:50 pm
PWM
-
SFO
8h 45m
1 stop
$393American Airlines
Tue, Jul 14 - Tue, Jul 21
American Airlines Logo
11:07 pm - 12:35 pm
SFO
-
PWM
10h 28m
2 stops
American Airlines Logo
6:59 pm - 12:59 am
PWM
-
SFO
9h 00m
1 stop
$394American Airlines
Sat, May 30 - Wed, Jun 3
American Airlines Logo
6:01 am - 6:29 pm
SFO
-
PWM
9h 28m
1 stop
American Airlines Logo
3:03 pm - 10:24 pm
PWM
-
SFO
10h 21m
2 stops
$398American Airlines
Tue, Jul 21 - Wed, Aug 19
American Airlines Logo
11:07 pm - 12:35 pm
SFO
-
PWM
10h 28m
2 stops
American Airlines Logo
7:37 am - 4:02 pm
PWM
-
SFO
11h 25m
2 stops
$399American Airlines
Tue, Aug 18 - Mon, Aug 24
Southwest Logo
6:35 am - 9:10 pm
SFO
-
PWM
11h 35m
2 stops
Southwest Logo
5:55 am - 2:10 pm
PWM
-
SFO
11h 15m
2 stops
$403Southwest
Booking Insights

KAYAK's insights & trends for San Francisco to Portland flights

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

How much is a round-trip flight from San Francisco to Portland, Maine?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Portland, Maine departing in June.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Portland, 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 San Francisco to Portland is January, where tickets cost $334 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $786 and $650 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Portland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Portland, you should book around 5 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$139
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from San Francisco to Portland

When to book flights from San Francisco to Portland

Are your dates flexible? Find out the best times to travel from San Francisco to Portland 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 San Francisco to Portland

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

    In the last 3 days, the lowest price for a flight from San Francisco to Portland was $139 for a one-way ticket and $358 for a round-trip.

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

    No, a passport isn't needed to fly from San Francisco to Portland. However, local authorities might ask for an official ID.

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

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

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the San Francisco to Portland flight route.

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

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

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Portland are Delta and Southwest. With an average price for the route of $372 and an overall rating of 7.9, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $436 and an overall rating of 7.9.

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

    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 San Francisco to Portland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from San Francisco 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 San Francisco to Portland?

    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 Portland with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and PWM 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 San Francisco to Portland?

    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 Portland from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from San Francisco to Portland?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Francisco to Portland.
Find which airlines fly direct from San Francisco Airport to Portland Airport, which days they fly and book direct flights.

Direct departures

San Francisco to Portland

Saturday

United Airlines

United Airlines

See more direct flights

Direct returns

Portland to San Francisco

Saturday

United Airlines

United Airlines

See more direct flights

Reviews of the top 5 airlines serving from San Francisco to Portland

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Portland. 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 San Francisco to Portland? 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.
7.9
SouthwestOverall score based on 4305 reviews
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

Given us a free miles or free flight for waiting for 9 hours I didn’t get home till 5am in the morning and I was supposed to be home at 9:30 touch down.

Excellent price. Everything on time. two bad parts. Kayak said I couldn't sign in for the flight online, but I got an email at the same time from Jet Blue and they let me sign in online. Second bad part was that, although I had provided my known traveler number, neither of my boarding passes, for this flight and the previous one, had TSA pre-check showing.

Jet blue was great But the Jayak system Wasa pure nightmare and wasted so much of my time and energy by not giving me a way to access jet blue to check in the flight back I didn’t even get the number confirmation code 24 hours before. Because I didn’t receive the email with the confirmation code I could NoT CHECk IN. I spoke to a kayak third party and they informed me I could not carry a carry on, on the flight which caused me so much extra stress it was just too much. You can be sure I will not be using it recommending your site. Again.

There was a screen but no earphones that could use the older input so I could listen to anything.

My experience with JetBlue was fine BUT I am very upset with Kayak! JetBlue had delayed our scheduled departure by an hour and you NEVER notified me of the change. I did not hear directly from JetBlue because the trip was booked through Kayak, a mistake I will not repeat. Your reminder of the our trip last week still had the WRONG departure time. Our return trip has also changed, and again no notice from you.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Not having an assigned seat until boarding and then having to check my bag.

Everything you need to know for your flight from San Francisco to Portland

Information on your arrival and departure airports