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Cheap Flights from Portland (PDX) to Seattle / Tacoma International (SEA)

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Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

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Flight deals from Portland to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best round-trip flight from Portland to Seattle / Tacoma International? Find the lowest prices on one-way and round-trip tickets right here.
Seattle.$128 per passenger.Departing Mon, Jun 3, returning Tue, Jun 4.Round-trip flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Portland on Mon, Jun 3, arriving in Seattle / Tacoma International.Inbound indirect flight with Spirit Airlines, departing from Seattle / Tacoma International on Tue, Jun 4, arriving in Portland.Price includes taxes and charges.From $128, select.
Seattle.$130 per passenger.Departing Tue, Jun 4, returning Tue, Jun 4.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Portland on Tue, Jun 4, arriving in Seattle / Tacoma International.Inbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Tue, Jun 4, arriving in Portland.Price includes taxes and charges.From $130, select.
Seattle.$135 per passenger.Departing Wed, May 22, returning Wed, May 29.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Portland on Wed, May 22, arriving in Seattle / Tacoma International.Inbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Wed, May 29, arriving in Portland.Price includes taxes and charges.From $135, select.
Seattle.$159 per passenger.Departing Fri, May 31, returning Tue, Jun 4.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Portland on Fri, May 31, arriving in Seattle / Tacoma International.Inbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Tue, Jun 4, arriving in Portland.Price includes taxes and charges.From $159, select.
Seattle.$179 per passenger.Departing Sun, Jul 14, returning Sun, Jul 21.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Portland on Sun, Jul 14, arriving in Seattle / Tacoma International.Inbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Sun, Jul 21, arriving in Portland.Price includes taxes and charges.From $179, select.
Seattle.$189 per passenger.Departing Sat, Aug 24, returning Sun, Aug 25.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Portland on Sat, Aug 24, arriving in Seattle / Tacoma International.Inbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Sun, Aug 25, arriving in Portland.Price includes taxes and charges.From $189, select.
Seattle.$193 per passenger.Departing Thu, Oct 10, returning Mon, Nov 11.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Portland on Thu, Oct 10, arriving in Seattle / Tacoma International.Inbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Mon, Nov 11, arriving in Portland.Price includes taxes and charges.From $193, select.
Seattle.$196 per passenger.Departing Sun, Sep 1, returning Mon, Sep 30.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Portland on Sun, Sep 1, arriving in Seattle / Tacoma International.Inbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Mon, Sep 30, arriving in Portland.Price includes taxes and charges.From $196, select.

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Find the cheapest month to fly from Portland to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Seattle / Tacoma International flights are currently cheapest in June.
May
from $135
Jun
from $128
Jul
from $179
Aug
from $189
Sep
from $196
Oct
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Nov
from $206
Dec
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Jan
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Feb
from $206
Mar
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Apr
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Direct flights from Portland to Seattle / Tacoma International

Portland to Seattle / Tacoma International: Alternative routes

Compare routes from Portland to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Portland to Seattle: Flight information

The things to know before you go.
Cheapest flight found$128
Cheapest month to flyJune
Average flight time1 hr, 3 mins
Most popular airlineAlaska Airlines
Average flights per week583

Finding cheap flights from Portland to Seattle / Tacoma International: Frequently asked questions

The best price we found for a round-trip flight from Portland to Seattle / Tacoma International is $128. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 3 minutes is the average flight time from Portland to Seattle / Tacoma International.
Alaska Airlines, WestJet and Horizon Air fly direct from Portland to Seattle / Tacoma International.
There are 612 flights per week flying from Portland to Seattle / Tacoma International, as of May 2024.
The cheapest month to fly from Portland to Seattle / Tacoma International is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Seattle / Tacoma International Airport on Monday, June 3, 2024.
Yes – the average flight time is 1 hour and 3 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle / Tacoma International is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Spirit Airlines and Alaska Airlines offer the cheapest flight tickets to Seattle / Tacoma International.

Fly From Portland International Airport to Seattle-Tacoma International Airport

Known as the Emerald City, Seattle features an eclectic mix of urban sophistication and outdoor beauty. The glass and steel of the downtown skyline are set against a backdrop of lush green hills, and the city offers a hip, trendy atmosphere. Home to Microsoft and the original Starbucks, Seattle includes parks and museums as well as a lively arts, food and music scene. You can fly nonstop from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) in less than an hour aboard Delta and Alaska Airlines.

Facilities at Seattle-Tacoma International Airport

The main aviation gateway to the Pacific Northwest, Seattle-Tacoma International Airport (SEA) has a Central Terminal with four concourses and two satellite terminals. The North and South Terminals are connected to the main complex by underground people movers. Several major international and low-cost carriers serve the airport. These include British Airways, United, JetBlue and Frontier.

Commonly referred to as Sea-Tac, SEA was named one of the country’s most tech-friendly airports. Travelers enjoy complimentary Wi-Fi and charging stations. There are a variety of retail shops and eateries as well as public art, a mother’s room and a children’s playroom. There are also indoor and outdoor pet relief areas. Passengers traveling from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) can reach downtown by taxi, rental car or the Central Link light rail system. Taking a taxi to a hotel in downtown Seattle will cost around $40.

Things to Do Near Seattle-Tacoma International Airport

After taking one of the many flights from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA), you can enjoy numerous attractions. Ride to the top of the iconic Space Needle. Standing over 500 feet tall, it offers 360-degree panoramic views of the surrounding area. The Seattle Art Museum boasts a collection of more than 25,000 paintings, sculptures and other pieces of priceless artwork.

The Pacific Science Center features interactive math, science and technology exhibits that educate and entertain people of all ages. In addition to the Seattle Aquarium, you can explore the animal exhibits at the Point Defiance Zoo. Park Place Market is a popular shopping destination, and the 535-acre Discovery Park features forests, beaches and scenic trails. You can also enjoy Ali Beach and Lake Washington.

Hints and Tips for Seattle-Tacoma International Airport

The Seattle area boasts a mild climate that produces summer highs in the 70s Fahrenheit and winter lows in the 40s Fahrenheit. The city experiences cool evenings year-round, so pack a light jacket. The Downtown and Belltown neighborhoods are known for their restaurants and entertainment venues. Renowned symphony, ballet and opera performances take place in Benaroya and McGaw halls. Flights from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) also enable you to enjoy sports and concerts at Century Link Field, Safeco Field and the Key Arena.

Popular cultural celebrations include the Viking Days, Bumbershoot and the Northwest Folklife Festival. When out on the town, sample local favorites like bubble tea, ginger beer and handmade stuffed piroshki pastries. Two people can expect to pay about $60 for a multi-course meal at a mid-range restaurant.


Plan the rest of your trip from Portland to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.