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Cheap flights from Portland to Seattle from £68

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Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from Portland to Seattle.
Condor Logo
PDX-SEA
0h 58mdirect
Condor Logo
SEA-PDX
0h 52mdirect
Condor
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KLM Logo
PDX-SEA
1h 25mdirect
KLM Logo
SEA-PDX
0h 59mdirect
Qatar Airways Logo
PDX-SEA
0h 54mdirect
Qatar Airways Logo
SEA-PDX
0h 57mdirect
Qatar Airways
Find Deal
Japan Airlines Logo
PDX-SEA
0h 58mdirect
Japan Airlines Logo
SEA-PDX
0h 59mdirect
Japan Airlines
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Icelandair Logo
PDX-SEA
0h 57mdirect
Icelandair Logo
SEA-PDX
1h 00mdirect
Icelandair
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Air France Logo
PDX-SEA
1h 14mdirect
Air France Logo
SEA-PDX
1h 00mdirect
Air France
Find Deal
Delta Logo
PDX-SEA
1h 09mdirect
Delta Logo
SEA-PDX
1h 08mdirect
China Eastern Logo
PDX-SEA
1h 25mdirect
China Eastern Logo
SEA-PDX
0h 59mdirect
China Eastern
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Aeromexico Logo
PDX-SEA
1h 09mdirect
Aeromexico Logo
SEA-PDX
1h 02mdirect
Aeromexico
Find Deal
STARLUX Airlines Logo
PDX-SEA
0h 54mdirect
STARLUX Airlines Logo
SEA-PDX
0h 50mdirect
STARLUX Airlines
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Alaska Airlines Logo
PDX-SEA
0h 54mdirect
Alaska Airlines Logo
SEA-PDX
0h 57mdirect
Alaska Airlines
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Finnair Logo
PDX-SEA
0h 54mdirect
Finnair Logo
SEA-PDX
0h 56mdirect
Finnair
Find Deal
Scandinavian Airlines Logo
PDX-SEA
1h 07mdirect
Scandinavian Airlines Logo
SEA-PDX
1h 04mdirect
Scandinavian Airlines
Find Deal
Hawaiian Airlines Logo
PDX-SEA
0h 54mdirect
Hawaiian Airlines Logo
SEA-PDX
0h 57mdirect
Hawaiian Airlines
Find Deal
Korean Air Logo
PDX-SEA
0h 54mdirect
Korean Air Logo
SEA-PDX
0h 52mdirect
Korean Air
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Air Tahiti Nui Logo
PDX-SEA
0h 54mdirect
Air Tahiti Nui Logo
SEA-PDX
0h 48mdirect
Air Tahiti Nui
Find Deal
WestJet Logo
PDX-SEA
1h 09mdirect
WestJet Logo
SEA-PDX
0h 59mdirect
WestJet
Find Deal
Virgin Atlantic Logo
PDX-SEA
1h 14mdirect
Virgin Atlantic Logo
SEA-PDX
1h 00mdirect
Virgin Atlantic
Find Deal
Singapore Airlines Logo
PDX-SEA
0h 58mdirect
Singapore Airlines Logo
SEA-PDX
1h 00mdirect
Singapore Airlines
Find Deal
British Airways Logo
PDX-SEA
1h 04mdirect
British Airways Logo
SEA-PDX
1h 00mdirect
British Airways
Find Deal

See travel insights to Seattle from

How to get the cheapest flight ticket from Portland to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from Portland is in August. Flight prices, which tend to average around £122, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Seattle, with average flight prices from Portland averaging around £123.

What is the cheapest day to depart on your flight to Seattle?

According to our data, Saturday is the cheapest day to fly to Seattle from Portland. The lowest ticket price found for a Saturday departure recently was £0. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Friday is £1,557.

What is the cheapest time of day to depart on your flight to Seattle?

According to our data, the cheapest time of day to fly to Seattle is in the evening. momondo users have found flights departing from Portland to Seattle in the evening for as low as £665. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive, with an average ticket price of £819.

What is the cheapest Portland to Seattle/Tacoma Intl flight route?

Fly from Portland to Seattle/Tacoma Intl for the best Portland - Seattle/Tacoma Intl flight prices

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

You are more likely to see cheaper flights to Seattle from Portland when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around £158 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Portland for as low as £108 on momondo.

What cabin class options are available on Portland to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Portland to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Portland to Seattle flight prices changed over time?

As of April 2025, prices for Portland to Seattle flights are approximately 27% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Portland to Seattle (PDX to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Seattle

Direct flights

None
There are no direct flights from Portland to Seattle. There are no popular flight routes from Portland to Seattle.

  • How far is Portland to Seattle/Tacoma Intl by plane?

    There are 145.2 mi between Portland and Seattle/Tacoma Intl.

  • When did momondo last update prices for flights from Portland Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Portland Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How old do you have to be to fly from Portland Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Portland to Seattle?


Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Kent
Tukwila
SeaTac
Fife
Mukilteo
Renton

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Portland.

Can I find flights from Portland to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to Seattle?

Once you have performed a search for Portland to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portland to Seattle right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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