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PDX - SEA

Find cheap flights from Portland to Seattle from $55

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 Seattle departing on 6/4. 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
Mon 6/3
Mon 6/10

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Seattle, 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 Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

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Cheap flight deals from Portland to Seattle (PDX-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Seattle 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
3:50 pm - 4:51 pmPDX-SEA
1h 01mnonstop
7:45 pm - 8:40 pmSEA-PDX
0h 55mnonstop
$131Alaska Airlines
Find Deal
Tue, Jun 11 - Tue, Jun 11
4:50 pm - 5:49 pmPDX-SEA
0h 59mnonstop
5:15 pm - 6:06 pmSEA-PDX
0h 51mnonstop
$137Alaska Airlines
Find Deal
Wed, May 29 - Wed, Jun 5
5:20 am - 8:29 pmPDX-SEA
15h 09m1 stop
9:28 am - 7:06 pmSEA-PDX
9h 38m2 stops
$155Spirit Airlines
Find Deal
Wed, May 29 - Wed, Jun 5
5:40 pm - 6:43 pmPDX-SEA
1h 03mnonstop
7:37 pm - 8:38 pmSEA-PDX
1h 01mnonstop
$157Delta
Find Deal
Sat, May 25 - Sat, Jun 1
5:10 am - 6:15 amPDX-SEA
1h 05mnonstop
9:32 am - 10:34 amSEA-PDX
1h 02mnonstop
$167Delta
Find Deal
Sun, May 26 - Tue, May 28
12:00 pm - 8:29 pmPDX-SEA
8h 29m1 stop
9:28 am - 10:52 pmSEA-PDX
13h 24m1 stop
$168Spirit Airlines
Find Deal
Wed, May 29 - Wed, Jun 5
11:59 pm - 5:10 pmPDX-SEA
17h 11m1 stop
9:40 pm - 7:06 pmSEA-PDX
21h 26m2 stops
Fri, May 24 - Tue, Jun 4
11:30 pm - 3:55 pmPDX-SEA
16h 25m2 stops
9:40 pm - 11:05 amSEA-PDX
13h 25m1 stop
Sat, May 25 - Mon, May 27
4:01 pm - 11:34 amPDX-SEA
19h 33m2 stops
7:00 am - 6:34 pmSEA-PDX
11h 34m1 stop
$480United Airlines
Find Deal
Tue, Sep 10 - Sat, Sep 28
1:30 pm - 1:23 amPDX-SEA
11h 53m1 stop
7:00 am - 12:34 amSEA-PDX
17h 34m1 stop
$539United Airlines
Find Deal
Sun, Sep 1 - Sun, Sep 8

Flights from Portland to Seattle - Travel Insights & Trends

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

The average price of all flights from Portland to Seattle clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Portland to Seattle, look for departures on Saturdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Seattle, Sunday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portland to Seattle, 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 to Seattle is September, where tickets cost $138 on average. On the other hand, the most expensive months are November and March, where the average cost of tickets is $307 and $274 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Portland to Seattle, 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 to Seattle, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 56 days before departure.

Which airlines provide the cheapest flights from Portland to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Spirit Airlines ($55) and Delta ($69). The cheapest round-trip tickets were found on Alaska Airlines ($131) and Spirit Airlines ($155).

Which airlines fly non-stop between Portland and Seattle?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Portland to Seattle.
There are 2 airlines that fly nonstop from Portland to Seattle. They are Alaska Airlines and Delta. The cheapest airline for this route is Delta, with the best one-way deal found costing $88. On average, the best prices for this route can be found at Delta.

How many flights are there between Portland and Seattle per day?

Each day, there are between 25 and 31 nonstop flights that take off from Portland and land in Seattle, with an average flight time of 1h 00m. The most common departure time is 6:00 am and most flights take off in the morning. Each week, there are 199 flights. The most frequent day of departure is Monday, when 16% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Portland and Seattle?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Portland to Seattle take?

The average nonstop flight takes 0h 56m, covering a distance of 129 miles.

What’s the earliest departure time from Portland to Seattle?

Early birds can take the earliest flight from Portland at 5:00 am and will be landing in Seattle at 6:01 am.

What’s the latest departure time from Portland to Seattle?

If you prefer to fly at night, the latest flight from Portland to Seattle jets off at 8:55 pm and lands at 9:54 pm.

Good to know

Low season

April

High season

March

Cheapest flight

$55
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Portland to Seattle

When to book flights from Portland to Seattle

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

  • Can I withdraw cash at SEA?

    If you’d like to withdraw some cash at SEA, you can do so without difficulty, as the airport features ATMs in the Central Terminal and all gated areas.

  • Does SEA have a nursing room?

    SEA has seven nursing rooms. They are located near Gates S, A9, C10, N2, D10, and D23 and on the Main Terminal of the airport’s train stations. Apart from breastfeeding your baby, in any of these rooms, you’ll get the chance to change your baby’s diapers, as they all have changing tables.

  • Does SEA have an on-site hotel?

    SEA does not have an on-site hotel. However, if you’d like to stay at a hotel near this airport, you’ll have many options. They include Hilton Seattle Airport & Conference Center, Crowne Plaza Seattle Airport, and Radisson Hotel Seattle Airport.

  • Does PDX have a children’s play area?

    PDX features two children’s play areas. One is near Gate C17 in Concourse C, while the other is near Gate D7 in Concourse D. At either, your child will have lots of fun, given that they feature a wide variety of toys and child-proof playgrounds.

  • What is the cheapest flight from Portland to Seattle?

    In the last 3 days, the lowest price for a flight from Portland to Seattle was $55 for a one-way ticket and $131 for a round-trip.

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

    No

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

    Portland and Seattle are both served by 1 main airport. You will leave Portland from Portland and will be arriving at Seattle/Tacoma Intl.

  • Which airlines offer Wi-Fi service onboard planes from Portland to Seattle?

    All the following airlines offer inflight Wi-Fi service on the Portland to Seattle flight route: Alaska Airlines, Delta, JetBlue, Virgin Atlantic, American Airlines, and Air France.

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

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Portland to Seattle flight route.

  • Which airline alliances offer flights from Portland to Seattle?

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

  • On which days can I fly direct from Portland to Seattle?

    There are nonstop flights from Portland to Seattle on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Portland to Seattle are Alaska Airlines and Delta. With an average price for the route of $198 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $176 and an overall rating of 8.0.

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

    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 Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle 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 Seattle?

    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 Seattle with an airline and back to Portland with another airline. Booking your flights between Portland and SEA 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 Seattle?

    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 Seattle 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 tips for finding a cheap flight from PDX to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $197 or less one-way and $496 or less round-trip.
  • At Portland International Airport (PDX), you’ll come across traffic, given that cars continuously pick up and drop off passengers at this airport. Due to its high passenger traffic, you’ll also encounter long lines at the airport’s security checkpoints. To avoid missing your flight at this airport because of being stuck in traffic or delayed at its security checkpoints, on the date you’re set to travel to Seattle, you should get to it at least 2h in advance of your flight.
  • Suppose you’re disabled, sick, or have limited mobility. In that case, you can receive assisted travel services at PDX, as this airport features TSA Care officials whose mandate is to ensure that special travelers receive the help they require while at the airport. To receive assisted travel services, you should contact and inform the airport’s TSA care office of the services you will require at least 72h before your flight.
  • While waiting for your flight to Seattle-Tacoma International Airport (SEA) at PDX, you can check out the art exhibitions spread throughout the airport. You can also visit the airport’s movie theater in Concourse C. At this free-to-enter theater, you will get the chance to see educational and entertaining short films about the Pacific Northwest. If none of these attractions appeals to you, you should consider relaxing at the airport’s spa, The Dragontree Spa. Situated in Concourse C, this spa features well-trained professionals and exceptional spa equipment. Hence, if you visit it, you can count on being well catered to.
  • Once you land at SEA, you can take some time to rejuvenate on one of the two The Club lounges. Located in the airport’s South Satellite and Central Terminal, these lounges feature comfortable seats, magazines, clean toilets, beverages, snacks, and friendly staff.
  • In case you want to rent a car at SEA, you’ll be able to do so as the airport has a dedicated Rental Car Facility that houses car rental agencies such as Alamo, Avis, Budget, Enterprise, Hertz, and National. To get to this facility, you'll board a shuttle outside the baggage claim area of the Main Terminal.
See more tips

Prefer to fly non-stop from Portland to Seattle?

Find which airlines fly direct from Portland to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Portland to Seattle/Tacoma Intl

Monday

Aeromexico, Air France, Air Tahiti Nui, +12 more

Aeromexico, Air France, +13 more

Tuesday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Wednesday

Aeromexico, Air France, Air Tahiti Nui, +12 more

Aeromexico, Air France, +13 more

Thursday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Friday

Aeromexico, Air France, Air Tahiti Nui, +12 more

Aeromexico, Air France, +13 more

Saturday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Sunday

Aeromexico, Air France, Air Tahiti Nui, +13 more

Aeromexico, Air France, +14 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Portland

Monday

Aeromexico, Air France, Air Tahiti Nui, +12 more

Aeromexico, Air France, +13 more

Tuesday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Wednesday

Aeromexico, Air France, Air Tahiti Nui, +12 more

Aeromexico, Air France, +13 more

Thursday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Friday

Aeromexico, Air Tahiti Nui, Alaska Airlines, +12 more

Aeromexico, Air Tahiti Nui, +13 more

Saturday

Aeromexico, Air France, Air Tahiti Nui, +14 more

Aeromexico, Air France, +15 more

Sunday

Aeromexico, Air France, Air Tahiti Nui, +13 more

Aeromexico, Air France, +14 more

See more direct flights
See more direct flights

Top airlines flying from Portland to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Portland to Seattle. 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 Seattle? 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 9137 reviews
7.9Comfort
8.6Crew
8.2Boarding
7.3Entertainment
7.3Food
Airline reviews

Overall good flight, smooth and on time and comfortable. Disappointing that food is not served and you can't purchase the snack packs on the plane.

8.0 ExcellentKristen, May 2024BOS - SEA
Read more about Alaska Airlines reviews

Overall good flight, smooth and on time and comfortable. Disappointing that food is not served and you can't purchase the snack packs on the plane.

There was a row with three women who were very loud - talking and laughing. In an open, outdoor setting that's fine. On an airplane, no. The flight attendants told the women they were the fun row. It took the woman sitting in the row ahead of the loud women to tell them they were too loud, but everyone in the general vicinity was irritated. I didn't think it would be possible to be so rowdy for so long. Then when we landed we weren't let off at a gate. We had to be bussed in and the bus contended with airline traffic. After dealing with the loud passengers, this was not what I was expecting. An incredibly disappointing experience with an airline that I have always regarded as one of the better ones.

They oversold my flight by 9 seats so when I went to check in I was not assigned a seat and the only one available if I didn’t want to chance it were 100 dollars more

Was not happy that we had to wait an additional 50 minutes for passengers that were still in TSA. This delay made us miss our connecting flight in Seattle to get home to tuck in our two little toddlers. We ran off the plane and ran across the entire airport trying to make this flight only to get to the gate to see that they have ended boarding. So they were willing to wait for passengers in Hawaii but not Seattle?? Especially when this wasn't even our fault. I expect to receive miles for missing our flight and spending an additional 4 hours in Seattle.

Better organizing of entry and exit onto the plane regarding all of the baggage people haul on. There should be a better system so those with no baggage can get in and out more quickly. The baggage haul-on situation is absurd.

It was a great experience, although our seat was taken and we did not want to be rude and ask the person to move. Flight Attendants need to make sure that people should be in their assign sitting that are paid for. Other then that, we had a great flying experience with Alaska Airlines.

Too many people with oversized carry-ons. Uncomfortable seats. flight was too crowded.

Assigned last seat in row Did not recline at all Alaska Air seemed to have more leg room than my last few flights on United Yay!

The WIFI didn't work well enough to get through even 5 minutes of a movie I had selected (it just kept pausing and spinning), and I just gave up and read a book. The selection of movies was a little sparse though, so reading wasn't that bad of an option. This was an older 737-800, with undersized overhead bins -- but it doesn't make sense to me that we are told to slide our bags in with the wheels facing us (most people ignore that and put the handles facing us). This makes it more difficult to remove the bags (no handle). The flight went well, and the fruit/cheese platter I pre-ordered was good -- although it is a little annoying to have to pre-order for this (but I suppose it saves time). When I pre-order it automatically gets charged to my personal credit card (Alaska VISA), when I'd prefer to use my corporate card for that on business trips.

It was our baby’s first flight and everything went perfect. The flight attendant gave him his first set of wings and we were smooth flying from there.

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Delta needs to step up the meals and snacks. They have been serving the same two meals for three years.... It is time to change it up.

Book cheap flights from Portland to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Portland to Seattle found on KAYAK in the last 72 hours.
6/4Tue
1 stopSpirit Airlines
16h 35mPDX-SEA
$55
6/4Tue
nonstopDelta
1h 02mPDX-SEA
$69
6/3Mon
nonstopAlaska Airlines
1h 01mPDX-SEA
$89
8/3Sat
nonstopAlaska Airlines
1h 02mPDX-SEA
$99
6/2Sun
2 stops
24h 30mPDX-SEA
$143
6/2Sun
1 stopSun Country Air
13h 20mPDX-SEA
$176
6/3Mon
2 stops
22h 40mPDX-SEA
$179
7/4Thu
1 stopSun Country Air
14h 17mPDX-SEA
$198
8/4Sun
2 stopsWestJet
26h 31mPDX-SEA
$274
8/4Sun
3 stopsWestJet
26h 31mPDX-SEA
$314

Search by stops

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Last minute flights from Portland to Seattle

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 Seattle that are departing in the next 10 days.
5/8Wed
nonstopAlaska Airlines
0h 57mPDX-SEA
5/15Wed
nonstopAlaska Airlines
0h 55mSEA-PDX
$317
5/7Tue
nonstopAlaska Airlines
1h 00mPDX-SEA
5/7Tue
multi-stopAlaska Airlines
11h 36mSEA-PDX
$320
5/7Tue
nonstopDelta
1h 05mPDX-SEA
5/9Thu
nonstopDelta
1h 01mSEA-PDX
$333
5/8Wed
nonstopDelta
1h 03mPDX-SEA
5/8Wed
nonstopDelta
1h 00mSEA-PDX
$367
5/8Wed
multi-stopSpirit Airlines
17h 18mPDX-SEA
5/15Wed
multi-stopSpirit Airlines
13h 25mSEA-PDX
$411
5/7Tue
multi-stopSpirit Airlines
16h 48mPDX-SEA
5/9Thu
multi-stopSpirit Airlines
13h 46mSEA-PDX
$437
5/7Tue
multi-stopSouthwest
8h 35mPDX-SEA
5/9Thu
multi-stopSouthwest
10h 25mSEA-PDX
$523
5/7Tue
multi-stopSouthwest
14h 10mPDX-SEA
5/9Thu
multi-stopSouthwest
7h 00mSEA-PDX
$528
5/7Tue
multi-stop
16h 48mPDX-SEA
5/9Thu
multi-stop
30h 56mSEA-PDX
$536
5/8Wed
multi-stop
15h 30mPDX-SEA
5/9Thu
multi-stop
13h 46mSEA-PDX
$645

Search by stops

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Portland - Seattle Flights

Departure:

Portland (PDX)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Portland

Cabin classes:

$682
$904
$624
$241

Compare transportation modes for Portland to Seattle

Average priceAverage duration
Flights$1,0450h 56m
Trains$543h 27m
Buses$484h 06m