SEA - PWM

$141 Find Cheap Flights from Seattle 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 Seattle to Portland departing on 9/30. 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

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 Seattle to Portland.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Portland.
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Flights Deals

Cheap Flights from Seattle to Portland (SEA-PWM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle 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 Seattle to Portland

Fri, Sep 5 - Fri, Sep 12
JetBlue Logo
11:40 pm - 1:22 pmSEA-PWM
10h 42m1 stop
JetBlue Logo
2:17 pm - 10:10 pmPWM-SEA
10h 53m1 stop
$261JetBlue
Find Deal
Tue, Aug 19 - Thu, Sep 4
American Airlines Logo
5:25 am - 5:46 pmSEA-PWM
9h 21m1 stop
American Airlines Logo
3:56 pm - 10:04 pmPWM-SEA
9h 08m1 stop
$297American Airlines
Find Deal
Mon, Aug 25 - Sat, Sep 13
Delta Logo
11:55 pm - 10:42 amSEA-PWM
7h 47m1 stop
Delta Logo
1:50 pm - 8:32 pmPWM-SEA
9h 42m1 stop
$306Delta
Find Deal
Fri, Sep 19 - Sat, Sep 27
Delta Logo
12:40 am - 12:54 pmSEA-PWM
9h 14m1 stop
Delta Logo
3:15 pm - 11:34 pmPWM-SEA
11h 19m2 stops
$320Delta
Find Deal
Fri, Jul 4 - Sat, Jul 19
Sun Country Air Logo
11:59 pm - 11:57 amSEA-PWM
8h 58m1 stop
Sun Country Air Logo
1:16 pm - 10:47 pmPWM-SEA
12h 31m1 stop
$325Sun Country Air
Find Deal
Sat, Sep 20 - Sat, Sep 27
Southwest Logo
5:55 am - 4:05 pmSEA-PWM
7h 10m1 stop
Southwest Logo
1:15 pm - 7:55 pmPWM-SEA
9h 40m1 stop
$355Southwest
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Sat, Sep 20 - Sat, Sep 27
Southwest Logo
5:55 am - 4:05 pmSEA-PWM
7h 10m1 stop
Southwest Logo
1:15 pm - 7:55 pmPWM-SEA
9h 40m1 stop
$367Southwest
Find Deal
Thu, Jul 3 - Sat, Jul 19
United Airlines Logo
12:20 am - 1:20 pmSEA-PWM
10h 00m2 stops
United Airlines Logo
7:15 pm - 12:56 amPWM-SEA
8h 41m1 stop
$378United Airlines
Find Deal
Mon, Jul 14 - Tue, Jul 15
United Airlines Logo
12:20 am - 1:20 pmSEA-PWM
10h 00m2 stops
United Airlines Logo
7:15 pm - 12:56 amPWM-SEA
8h 41m1 stop
$394United Airlines
Find Deal
Sat, Jun 28 - Sat, Jul 5
Sun Country Air Logo
6:18 pm - 11:45 amSEA-PWM
14h 27m1 stop
Sun Country Air Logo
12:58 pm - 10:47 pmPWM-SEA
12h 49m1 stop
$400Sun Country Air
Find Deal
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KAYAK's insights & trends for Seattle to Portland flights

Get data-powered insights and trends into flights from Seattle to Portland 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 Seattle to Portland?

The average price of all round-trip flights from Seattle to Portland clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seattle to Portland, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Portland, Tuesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Seattle to Portland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle 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 Seattle to Portland is January, where tickets cost $341 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $770 and $631 respectively.

How far in advance should I book a flight from Seattle 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 Seattle 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 Seattle to Portland, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$141
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Seattle to Portland

When to book flights from Seattle to Portland

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

  • What is the cheapest flight from Seattle to Portland?

    In the last 3 days, the lowest price for a flight from Seattle to Portland was $141 for a one-way ticket and $261 for a round-trip.

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

    A passport is not required to fly from Seattle to Portland.

  • Which aircraft models fly most regularly from Seattle to Portland?

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

  • Which airline alliances offer flights from Seattle to Portland?

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

  • Which is the best airline for flights from Seattle to Portland, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Portland are Delta and Alaska Airlines. With an average price for the route of $516 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $816 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Seattle 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 Seattle to Portland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Seattle 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 Seattle 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 Seattle with another airline. Booking your flights between Seattle 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 Seattle 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 Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 5 airlines serving from Seattle to Portland

 
See real verified KAYAK customer reviews for airlines flying from Seattle 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 Seattle 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.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.1Entertainment
7.1Food
8.1Boarding
7.8Comfort
8.5Crew
Airline reviews

We had to take the train to our next gate but had time to eat a meal. When to our next gate and asked employee about gate and got informed that gate had been changed so back on train to next gate. So thankful she was there and informed us of gate change. Because of the issue the boarding was slow but employees were there and busy helping all and keeping it organized.

10.0 ExcellentHelen, Jun 2025SEA - MCI
Read more Alaska Airlines reviews

We had to take the train to our next gate but had time to eat a meal. When to our next gate and asked employee about gate and got informed that gate had been changed so back on train to next gate. So thankful she was there and informed us of gate change. Because of the issue the boarding was slow but employees were there and busy helping all and keeping it organized.

Very pleasant and the flight felt like it went by quick

All flight entertainment is from your own device and there was an $8 charge to connect. also 1 drink and a small bag of pretzels was all that was given to us. other that that the seats were good and the flight itself was as expected.

It is very bad they do not give you money back

They lost our bag and it took them days to find it. Terrible communication and lots of lies about where it was. Their system hasn’t merged with Hawaiian yet they route people on shared flights with Hawaiian, creating an administrative nightmare.

Major flight delays, it was a 1.5-hour delay. The gate kept changing about 3 times in Seattle. very hectic and chaotic.

More leg room in back seats. Can you require people to smell good on planes? ha ha Staff was great! Plane was comfortable. I enjoyed the movies and TV. Smooth take off and landing.

The only problem was the time delay. Kudos to the counter agent in Seattle. Very helpful and gracious.

This flight was how a flight should be. The flight from Hawaii to Seattle was terrible

Quick and easy check-in. Love how technology has helped speed up the flying process. Smooth flight to a Seattle and back. 10/10

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

Smooth flight, especially take off and landing, and great crew on board. Really loved the stroopwaffles!

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

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