PDX - SEA

$52 Find Cheap Flights from Portland to Seattle

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 4/15. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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

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

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

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

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.

Recent round-trip flight deals from Portland to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Portland to Seattle.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:25 am - 7:13 amPDX-SEA
0h 48mnonstop
9:04 pm - 8:22 amSEA-PDX
11h 18m1 stop
Sun, Mar 23 - Wed, Apr 16
8:28 pm - 11:46 amPDX-SEA
15h 18m1 stop
12:41 pm - 6:37 pmSEA-PDX
5h 56m1 stop
$116Spirit Airlines
Find Deal
Tue, Mar 4 - Tue, Mar 11
9:40 am - 10:37 amPDX-SEA
0h 57mnonstop
10:00 am - 10:54 amSEA-PDX
0h 54mnonstop
$127Hawaiian Airlines
Find Deal
Tue, Mar 11 - Wed, Mar 12
7:15 am - 8:17 amPDX-SEA
1h 02mnonstop
10:00 am - 10:54 amSEA-PDX
0h 54mnonstop
$131Alaska Airlines
Find Deal
Tue, Mar 11 - Tue, Mar 11
5:15 pm - 6:23 pmPDX-SEA
1h 08mnonstop
7:20 am - 8:31 amSEA-PDX
1h 11mnonstop
$137Delta
Find Deal
Tue, Mar 4 - Tue, Mar 11
7:15 am - 8:17 amPDX-SEA
1h 02mnonstop
11:20 am - 3:32 pmSEA-PDX
4h 12m1 stop
$141Alaska Airlines
Find Deal
Tue, Mar 11 - Tue, Mar 11
7:35 pm - 8:46 pmPDX-SEA
1h 11mnonstop
10:59 pm - 11:59 pmSEA-PDX
1h 00mnonstop
$157Delta
Find Deal
Wed, Mar 5 - Sun, Mar 9
3:00 pm - 4:01 pmPDX-SEA
1h 01mnonstop
9:59 pm - 10:56 pmSEA-PDX
0h 57mnonstop
$168Hawaiian Airlines
Find Deal
Thu, Feb 27 - Sun, Mar 2
3:55 pm - 10:30 pmPDX-SEA
6h 35m1 stop
7:40 am - 1:35 pmSEA-PDX
5h 55m1 stop
$354Southwest
Find Deal
Tue, May 13 - Sat, May 24
5:50 pm - 10:30 pmPDX-SEA
4h 40m1 stop
7:25 am - 2:15 pmSEA-PDX
6h 50m1 stop
$434Southwest
Find Deal
Fri, May 23 - Sun, May 25

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.
Find cheap flights to Seattle
Find cheap flights to Seattle

Planning a trip from Portland to Seattle? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

The average price of all round-trip flights from Portland to Seattle clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Seattle on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Portland to Seattle. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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 round-trip 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 August, where tickets cost $157 (return) on average. On the other hand, the most expensive months are June and January, where the average cost of round-trip tickets is $227 and $216 respectively.

Can I save money by flying with a layover from Portland to Seattle?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of $949, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.
To get a below average price on the flight from Portland to Seattle, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low season

February

High season

May

Cheapest flight

$52
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 1% 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.

Flights from Portland to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Portland to Seattle 
Verified travelerFlew with Alaska AirlinesPDX-SEAOct 2024
Everything went smoothly and I had assisted check in which was very helpful.
Verified travelerFlew with Alaska AirlinesPDX-SEAJan 2024
Make sure you have a place to stay when they cancel your flight

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 $52 for a one-way ticket and $110 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?

    Alaska Airlines, Delta, Hawaiian Airlines, American Airlines, and KLM offer inflight Wi-Fi service on the Portland to Seattle flight route.

  • 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 $205 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 $199 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

KAYAK’s top tips for finding a cheap flight from Portland to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $197 or less one-way and $473 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 direct from Portland to Seattle?

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

Direct departures

Portland to Seattle/Tacoma Intl

Monday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Tuesday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Wednesday

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

Aeromexico, Air France, +15 more

Thursday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Friday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Saturday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Sunday

Aeromexico, Air France, Air Tahiti Nui, +16 more

Aeromexico, Air France, +17 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to Portland

Monday

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

Aeromexico, Air France, +15 more

Tuesday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Wednesday

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

Aeromexico, Air France, +15 more

Thursday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Friday

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

Aeromexico, Air France, +15 more

Saturday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 more

Sunday

Aeromexico, Air France, Air Tahiti Nui, +15 more

Aeromexico, Air France, +16 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 9687 reviews
8.5Crew
8.2Boarding
7.1Food
7.9Comfort
7.1Entertainment
Airline reviews

The flight was canceled so i booked another flight with Delta, so essentially there was absolutely nothing that i enjoyed about my experience with this flight

2.0 MediocreScott, Feb 2025PSP - SEA
Read more Alaska Airlines reviews

The flight was canceled so i booked another flight with Delta, so essentially there was absolutely nothing that i enjoyed about my experience with this flight

Probably the worst 1st Class I have ever experienced. Sam, our flight attendant, was excellent. Other than that, everything from the Alaska Longe experience to the buggy app to the uncomfortable flight and uncommunicative agents were poor. The agent who booked us in forgot to mark TSA PreCheck on our boarding passes and we had to go back to get this done. They were a cut below every other airline we have experienced in just about every area.

my first time with Alaska Airlines, an exceptional airline with great employees.

The plane was late arriving at the airport which in turn we left late. I had to literally run to my next gate to catch my connecting flight and my luggage did not show up at my final destination.

Seattle flight to Walla Walla has a confusing doorway system . Small signs once you leave gate area to tarmac. Almost went the wrong way to my plane.

Please don't shrink the seat space any more, as United has done. Thanks for all your good work.

The flight was delayed almost an hour causing many passengers to be at jeopardy of missing their connecting flights. There was no help in providing passengers help with connections or allowing passengers with connecting flights to exit the plane in an expediated manner.

Hadn't flown for a while the crew was wonderful! Trip was great. My only challenge is navigating the airports. Getting from one plane to the next! All on all nice trip!

Nothing! I just didn't eat or use entertainment. I had three seats all to myself and it was wonderful!!!!

The kiosk for check in/bag check in. I liked the older version where you did everything on the kiosk (check in and bag tags). This time I needed to use my phone to check in and then scan the ticket from my phone to complete the bag tags. I didn't care for this new method. The older method was simpler.

Kind staff. Snacks are small but that’s the new normal.

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

Seats were really tight and the seat belts did not give enough slack.

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

The seats are uncomfortable, feels like a small seat pad on plywood.

Everything you need to know for your flight from Portland to Seattle

Information on your arrival and departure airports

Compare transportation modes for Portland to Seattle

Average priceAverage duration
Flights$1,0640h 48m
Trains$583h 29m
Buses$543h 55m

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.