Cheap Flights from Portland (PDX) to Seattle (SEA) from HK$627~

View HK$627 flight on Sat, 20 Sep 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA)

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Find Cheap Flights from Portland (PDX) to Seattle (SEA)

Prices were available within the past 7 days and start at HK$627 for one-way flights and HK$1,242 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$1,242 Return, found 5 days ago
HK$1,242
Return
found 5 days ago
Select Delta flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$1,242 found 5 days ago
Delta
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$1,479 Return, found 5 days ago
HK$1,479
Return
found 5 days ago
Select Delta flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$1,479 found 5 days ago
Delta
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$1,715 Return, found 5 days ago
HK$1,715
Return
found 5 days ago
Select Delta flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$1,715 found 5 days ago
Delta
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$1,790 Return, found 5 days ago
HK$1,790
Return
found 5 days ago
Select Delta flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$1,790 found 5 days ago
Delta
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$1,941 Return, found 5 days ago
HK$1,941
Return
found 5 days ago
Select Delta flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$1,941 found 5 days ago
Delta
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$2,027 Return, found 5 days ago
HK$2,027
Return
found 5 days ago
Select Delta flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$2,027 found 5 days ago
Delta
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$2,177 Return, found 5 days ago
HK$2,177
Return
found 5 days ago
Select Delta flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$2,177 found 5 days ago
Delta
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$2,220 Return, found 5 days ago
HK$2,220
Return
found 5 days ago
Select Delta flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$2,220 found 5 days ago
United
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$2,729 Return, found 5 days ago
HK$2,729
Return
found 5 days ago
Select United flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$2,729 found 5 days ago
American Airlines
Sun, 21 Sep - Sun, 28 Sep
PDX
Portland
SEA
Seattle
HK$3,190 Return, found 5 days ago
HK$3,190
Return
found 5 days ago
Select American Airlines flight, departing Sun, 21 Sep from Portland to Seattle, returning Sun, 28 Sep, priced at HK$3,190 found 5 days ago

Find the cheapest month to fly from Portland (PDX) to Seattle (SEA)

January is typically the cheapest month to fly

From HK$598 - HK$1,700 per traveller.

Graph displaying average flight prices per month

0
Portland to Seattle route information
Origin airport
Portland Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
HK$1,242
Distance
206 km

Flights from Portland to Seattle

Book cheap flights from Portland (PDX) to Seattle (SEA) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Portland (PDX) to Seattle (SEA) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Portland (PDX) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Seattle flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Seattle and things to do in Seattle for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$627 now!

 

Frequently asked questions

How much is a flight from PDX Airport to Seattle - Tacoma Intl. Airport (SEA)?
Round-trip tickets from Portland Airport to Sea-Tac Airport start from HK$1,242. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Portland Airport to Sea-Tac Airport?
Most flights can be conveniently canceled online, but whether you are charged a fee varies between airlines. If you do need to cancel your vacation, follow the instructions in the Customer Service Portal.
How do I find cheap flights from PDX Airport to Sea-Tac Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PDX Airport to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Portland Airport to SEA?
It takes around 1 hour and 1 minute to jet from Portland Intl. Airport (PDX) to Seattle - Tacoma Intl. Airport (SEA) — just enough time for a quick snooze. You'll be landing in SeaTac by the time you open your eyes.
How far is the flight from Portland Intl. Airport (PDX) to Seattle - Tacoma Intl. Airport (SEA)?
The distance from Portland Intl. Airport (PDX) (PDX) to Sea-Tac Airport (SEA) is only 210 kilometers. You'll be disembarking the plane and collecting your suitcase from the carousel in no time.
Which airlines fly direct from PDX to Sea-Tac Airport?
With 495 flights every month from PDX to Seattle - Tacoma Intl. Airport (SEA), Alaska Airlines (AS) is a top choice. If you'd like more options, check out the fares from Delta Air Lines (DL). This airline offers 212 flights a month between these airports.
Are Portland Intl. Airport (PDX) to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from PDX Airport to SEA last minute could be your ticket to a great deal. However, it could end up costing a great deal more! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back regularly as deals are updated all the time on Expedia.

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