Cheap Flights from Seattle to Portland

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Flight deals from Seattle to Portland

Looking for a cheap last-minute deal or the best return flight from Seattle to Portland? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Portland flights are currently cheapest in February.

Direct flights from Seattle to Portland

Seattle to Portland: Alternative routes

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

Seattle to Portland: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 229
Cheapest month to flyFebruary
Average flight time55 mins
Most popular airlineAlaska Airlines
Average flights per week1,068

Finding cheap flights from Seattle to Portland: Frequently asked questions

The best price we found for a return flight from Seattle to Portland is ر.ق.‏ 315. 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.
54 minutes is the average flight time from Seattle to Portland.
Alaska Airlines, Air Tahiti Nui and Hawaiian Airlines fly direct from Seattle to Portland.
As of December 2025, there are 1,068 flights per week flying from Seattle to Portland.
The cheapest month to fly from Seattle to Portland is usually March.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Portland Airport on Wednesday, 18 March 2026.
Yes – the average flight time is 54 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 Portland 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 Portland is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Portland is Hawaiian Airlines .

Travelling from Seattle to Portland International Airport (PDX): What you need to know

  • Seattle's main airport is Seattle-Tacoma International Airport (SEA). Explore your options for leaving from this terminal when searching for flights from Seattle to Portland International Airport (PDX).

  • Expect to be in the air for 1 hour. On average, that's the duration of a direct Seattle to Portland International Airport flight.

  • Seattle and Portland (where Portland International Airport is located) share the UTC-7 timezone. That means you won't have to adjust your watch when you land.

  • Seattle-Tacoma International Airport (SEA) to Portland International Airport (PDX) is the most popular route. There are 135 direct weekly departures to choose from. If you prefer a later start to the day, take the last flight with Alaska Airlines at 11pm. Opt for the first SEA to PDX departure with Alaska Airlines at 5:23am if you want to get going earlier.

  • Leave plenty of time to make your flight from Seattle to PDX. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • During peak travel periods, expect longer queues and be there earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international trips.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) makes it easy to travel directly to your destination. Nonstop flights from Seattle to Portland International Airport (PDX) operate out of this terminal.

  • When leaving from SEA, you can take a direct flight from Seattle to Portland International Airport with Alaska Airlines.

  • Most passengers prefer to book seats with Alaska Airlines between SEA and PDX.

  • Delta Air Lines stands out as the most punctual carrier on this route, with 87.14% of its services arriving as scheduled.

  • Located around 23 kilometres from the centre of Seattle, SEA can be reached in about 20 minutes by car, depending on traffic. The journey on public transport takes roughly 55 minutes.

  • Searching for a comfortable hotel close to Seattle-Tacoma International Airport? If you're catching an early flight from Seattle to Portland International Airport, these stays will put you moments from your check-in counter:

  • Seattle-Tacoma International Airport earns top marks for its on-time performance. 81.27% of flights that take off from SEA land on time.

Lake Union Sea Plane Base Airport (LKE)

  • LKE is about 3 kilometres from central Seattle. It takes 10 minutes or so to get to the airport in a car from the city centre. Public transport takes approximately 25 minutes.

  • Catching an early morning flight? Think about staying at one of these accommodation options near Lake Union Sea Plane Base Airport the day before your Seattle to PDX flight:

About Portland International Airport (PDX)

Getting from Portland International Airport (PDX) to central Portland

  • Portland International Airport is roughly 10 kilometres from central Portland. How long it'll take to get there by cab or car hire depends on the time of day. Do a little research before your trip.

  • It takes roughly 45 minutes if you're travelling by public transport.

How to find the cheapest flights from Seattle to Portland International Airport (PDX)

  • ر.ق.‏ 230 is the best price for a one-way ticket from Seattle to Portland International Airport. Return flights start at ر.ق.‏ 315. These prices can change depending on availability.

  • Don't wait until the last moment. You're more likely to find cheap flights from Seattle to PDX if you book ahead. Airlines often offer some excellent early bird deals.

  • If you have some flexibility with your travel dates, try using the 'Whole month' tool. It'll give you the cheapest price across each month when searching for your Seattle to Portland International Airport ticket.

  • There's no need to check every day to find out if prices have dropped when you create a Price Alert. We'll let you know the moment a lower fare pops up on flight tickets from Seattle to PDX.

  • Tailor your trip using filters. Select your arrival and departure times, airlines and total journey duration. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Seattle to Portland International Airport.

The best time to fly from Seattle to Portland International Airport (PDX)

  • May is the quietest month for flights from Seattle to Portland International Airport (PDX), while July is the busiest. Find the best time to visit Portland based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Portland is August, with temperatures ranging between 12ºC and 31ºC. Book your Seattle to PDX flight ticket then if you enjoy this type of weather.

  • December has temperatures of between 0ºC and 9ºC. Look for cheap tickets from Seattle to Portland International Airport around that time if you like cooler conditions.

More about Portland

  • Once you've booked your flight from Seattle to Portland International Airport, find a hotel that offers a good mix of location and comfort. Make one of these options your base for exploring Portland:

  • Portland Japanese Garden and Voodoo Doughnut are just two of the leading attractions to put on your Portland travel itinerary. Keep the adventure rolling by checking out Great Northwest.

Explore more of the United States

  • You've done Portland, now it's time to explore more of the United States. Journey about 225 kilometres north to Seattle to tick off its top attractions. From Pike Place Market to Space Needle and Seattle Skyline, there's plenty to keep you on the go.

  • If there's time to check out another corner of the United States, head for Tacoma, roughly 193 kilometres north of Portland. LeMay - America's Car Museum, Chihuly Bridge of Glass and Point Defiance Park are key reasons to visit.

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