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Seattle Tacoma Intl. Airport to Portland International Airport flight

Explore the cheapest one-way and round-trip flights from Seattle Tacoma Intl. Airport to Portland International Airport over the next 90 days, with one-way fares from TWD 3,214 and round-trip from TWD 5,438. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      SEA 7:20 AM
      1h 16m
      Nonstop
      PDX 8:36 AM
      Seattle - Portland | Tue, Dec 8 | Delta Air Lines
      PDX 7:35 PM
      1h 15m
      Nonstop
      SEA 8:50 PM
      Portland - Seattle | Thu, Dec 10 | Delta Air Lines
      TWD 5,438 TWD 10,232
      47% off
      47% off
      TWD 10,232 TWD 5,438
    • SEA 8:59 PM
      55m
      Nonstop
      PDX 9:54 PM
      Seattle - Portland | Sun, Dec 6 | Alaska Airlines
      PDX 5:30 AM
      1h 1m
      Nonstop
      SEA 6:31 AM
      Portland - Seattle | Wed, Dec 9 | Alaska Airlines
      TWD 6,800 TWD 10,232
      34% off
      34% off
      TWD 10,232 TWD 6,800
    • SEA 7:20 AM
      1h 8m
      Nonstop
      PDX 8:28 AM
      Seattle - Portland | Tue, Nov 3 | Alaska Airlines
      PDX 7:37 PM
      56m
      Nonstop
      SEA 8:33 PM
      Portland - Seattle | Fri, Nov 6 | Alaska Airlines
      TWD 6,815 TWD 10,232
      33% off
      33% off
      TWD 10,232 TWD 6,815
    • SEA 10:37 AM
      1h 12m
      Nonstop
      PDX 11:49 AM
      Seattle - Portland | Tue, Nov 3 | Delta Air Lines
      PDX 8:44 PM
      1h 16m
      Nonstop
      SEA 10:00 PM
      Portland - Seattle | Fri, Nov 6 | Delta Air Lines
      TWD 6,864
      33% off
      TWD 10,232 TWD 6,864
    • SEA 7:20 AM
      1h 16m
      Nonstop
      PDX 8:36 AM
      Seattle - Portland | Sun, Dec 6 | Delta Air Lines
      PDX 7:00 AM
      1h 18m
      Nonstop
      SEA 8:18 AM
      Portland - Seattle | Wed, Dec 9 | Delta Air Lines
      TWD 6,952
      32% off
      TWD 10,232 TWD 6,952
    • SEA 8:55 PM
      1h 1m
      Nonstop
      PDX 9:56 PM
      Seattle - Portland | Mon, Nov 9 | Delta Air Lines
      PDX 5:49 PM
      1h 16m
      Nonstop
      SEA 7:05 PM
      Portland - Seattle | Fri, Nov 13 | Delta Air Lines
      TWD 7,079
      31% off
      TWD 10,232 TWD 7,079
    • SEA 12:21 PM
      1h 14m
      Nonstop
      PDX 1:35 PM
      Seattle - Portland | Sun, Nov 29 | Delta Air Lines
      PDX 5:50 PM
      1h 15m
      Nonstop
      SEA 7:05 PM
      Portland - Seattle | Fri, Dec 4 | Delta Air Lines
      TWD 7,089
      31% off
      TWD 10,232 TWD 7,089
    • SEA 3:53 PM
      57m
      Nonstop
      PDX 4:50 PM
      Seattle - Portland | Mon, Nov 16 | Alaska Airlines
      PDX 6:08 AM
      1h 2m
      Nonstop
      SEA 7:10 AM
      Portland - Seattle | Fri, Nov 20 | Alaska Airlines
      TWD 7,500
      27% off
      TWD 10,232 TWD 7,500
    • SEA 10:37 AM
      1h 12m
      Nonstop
      PDX 11:49 AM
      Seattle - Portland | Mon, Nov 16 | Delta Air Lines
      PDX 2:15 PM
      1h 10m
      Nonstop
      SEA 3:25 PM
      Portland - Seattle | Fri, Nov 20 | Delta Air Lines
      TWD 7,794
      24% off
      TWD 10,232 TWD 7,794
    • SEA 1:00 PM
      17h 25m
      1 stop
      PDX 2:00 PM
      Seattle - Portland | Wed, Nov 4 | Normal Airline
      PDX 3:00 PM
      6h
      Nonstop
      SEA 4:00 PM
      Portland - Seattle | Fri, Nov 6 | Normal Airline
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    • Cheapest
      SEA 4:17 PM
      7h 31m
      1 stop
      PDX 11:48 PM
      Seattle - Portland | Sun, Nov 29 | Alaska Airlines
      TWD 3,214 TWD 5,104
      37% off
      37% off
      TWD 5,104 TWD 3,214
    • SEA 8:54 AM
      7h 40m
      1 stop
      PDX 4:34 PM
      Seattle - Portland | Mon, Nov 23 | Alaska Airlines
      TWD 3,464 TWD 5,104
      32% off
      32% off
      TWD 5,104 TWD 3,464
    • SEA 8:55 PM
      1h 1m
      Nonstop
      PDX 9:56 PM
      Seattle - Portland | Thu, Nov 5 | Delta Air Lines
      TWD 3,498 TWD 5,104
      31% off
      31% off
      TWD 5,104 TWD 3,498
    • SEA 10:37 AM
      1h 12m
      Nonstop
      PDX 11:49 AM
      Seattle - Portland | Fri, Nov 6 | Delta Air Lines
      TWD 3,508
      31% off
      TWD 5,104 TWD 3,508
    • SEA 10:35 PM
      1h 1m
      Nonstop
      PDX 11:36 PM
      Seattle - Portland | Sun, Nov 15 | Delta Air Lines
      TWD 3,572
      57% off
      TWD 8,589 TWD 3,572
    • SEA 7:15 AM
      1h 14m
      Nonstop
      PDX 8:29 AM
      Seattle - Portland | Sat, Nov 21 | Delta Air Lines
      TWD 3,577
      30% off
      TWD 5,104 TWD 3,577
    • SEA 7:20 AM
      1h 16m
      Nonstop
      PDX 8:36 AM
      Seattle - Portland | Thu, Dec 3 | Delta Air Lines
      TWD 3,591
      30% off
      TWD 5,104 TWD 3,591
    • SEA 7:20 AM
      1h 16m
      Nonstop
      PDX 8:36 AM
      Seattle - Portland | Fri, Nov 27 | Delta Air Lines
      TWD 3,591
      57% off
      TWD 8,589 TWD 3,591
    • SEA 10:30 AM
      10h 12m
      1 stop
      PDX 8:42 PM
      Seattle - Portland | Mon, Dec 14 | Alaska Airlines
      TWD 3,743
      27% off
      TWD 5,104 TWD 3,743
    • SEA 1:00 PM
      17h 25m
      1 stop
      PDX 2:00 PM
      Seattle - Portland | Wed, Nov 4 | Normal Airline
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    • Cheapest nonstop
      SEA 8:55 PM
      1h 1m
      Nonstop
      PDX 9:56 PM
      Seattle - Portland | Thu, Nov 5 | Delta Air Lines
      TWD 3,498 TWD 5,104
      31% off
      31% off
      TWD 5,104 TWD 3,498
    • SEA 10:37 AM
      1h 12m
      Nonstop
      PDX 11:49 AM
      Seattle - Portland | Fri, Nov 6 | Delta Air Lines
      TWD 3,508 TWD 5,104
      31% off
      31% off
      TWD 5,104 TWD 3,508
    • SEA 10:35 PM
      1h 1m
      Nonstop
      PDX 11:36 PM
      Seattle - Portland | Sun, Nov 15 | Delta Air Lines
      TWD 3,572 TWD 8,589
      57% off
      57% off
      TWD 8,589 TWD 3,572
    • SEA 7:15 AM
      1h 14m
      Nonstop
      PDX 8:29 AM
      Seattle - Portland | Sat, Nov 21 | Delta Air Lines
      TWD 3,577
      30% off
      TWD 5,104 TWD 3,577
    • SEA 7:20 AM
      1h 16m
      Nonstop
      PDX 8:36 AM
      Seattle - Portland | Thu, Dec 3 | Delta Air Lines
      TWD 3,591
      30% off
      TWD 5,104 TWD 3,591
    • SEA 7:20 AM
      1h 16m
      Nonstop
      PDX 8:36 AM
      Seattle - Portland | Fri, Nov 27 | Delta Air Lines
      TWD 3,591
      57% off
      TWD 8,589 TWD 3,591
    • SEA 10:55 PM
      57m
      Nonstop
      PDX 11:52 PM
      Seattle - Portland | Sun, Dec 20 | Delta Air Lines
      TWD 3,890
      24% off
      TWD 5,104 TWD 3,890
    • SEA 2:25 PM
      56m
      Nonstop
      PDX 3:21 PM
      Seattle - Portland | Tue, Dec 8 | Alaska Airlines
      TWD 4,272
      50% off
      TWD 8,589 TWD 4,272
    • SEA 6:54 PM
      55m
      Nonstop
      PDX 7:49 PM
      Seattle - Portland | Mon, Nov 23 | Alaska Airlines
      TWD 4,306
      42% off
      TWD 7,479 TWD 4,306
    • SEA 1:00 PM
      17h 25m
      1 stop
      PDX 2:00 PM
      Seattle - Portland | Wed, Nov 4 | Normal Airline
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    • Cheapest nonstop
      SEA 10:35 PM
      1h 1m
      Nonstop
      PDX 11:36 PM
      Seattle - Portland | Sun, Nov 15 | Delta Air Lines
      TWD 3,572 TWD 8,589
      57% off
      57% off
      TWD 8,589 TWD 3,572
    • SEA 7:20 AM
      1h 16m
      Nonstop
      PDX 8:36 AM
      Seattle - Portland | Fri, Nov 27 | Delta Air Lines
      TWD 3,591 TWD 8,589
      57% off
      57% off
      TWD 8,589 TWD 3,591
    • SEA 2:25 PM
      56m
      Nonstop
      PDX 3:21 PM
      Seattle - Portland | Tue, Dec 8 | Alaska Airlines
      TWD 4,272 TWD 8,589
      50% off
      50% off
      TWD 8,589 TWD 4,272
    • SEA 2:25 PM
      56m
      Nonstop
      PDX 3:21 PM
      Seattle - Portland | Sat, Dec 12 | Alaska Airlines
      TWD 4,316
      50% off
      TWD 8,589 TWD 4,316
    • SEA 7:57 PM
      57m
      Nonstop
      PDX 8:54 PM
      Seattle - Portland | Wed, Dec 9 | Alaska Airlines
      TWD 4,321
      50% off
      TWD 8,589 TWD 4,321
    • SEA 9:23 PM
      54m
      Nonstop
      PDX 10:17 PM
      Seattle - Portland | Thu, Jan 7 | Alaska Airlines
      TWD 4,409
      49% off
      TWD 8,589 TWD 4,409
    • SEA 9:23 PM
      54m
      Nonstop
      PDX 10:17 PM
      Seattle - Portland | Tue, Jan 5 | Alaska Airlines
      TWD 4,414
      49% off
      TWD 8,589 TWD 4,414
    • SEA 3:53 PM
      57m
      Nonstop
      PDX 4:50 PM
      Seattle - Portland | Sun, Nov 8 | Alaska Airlines
      TWD 4,439
      48% off
      TWD 8,589 TWD 4,439
    • SEA 9:59 PM
      1h 1m
      Nonstop
      PDX 11:00 PM
      Seattle - Portland | Tue, Nov 3 | Alaska Airlines
      TWD 4,556
      47% off
      TWD 8,589 TWD 4,556
    • SEA 1:00 PM
      17h 25m
      1 stop
      PDX 2:00 PM
      Seattle - Portland | Wed, Nov 4 | Normal Airline
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    • Cheapest nonstop
      SEA 3:53 PM
      57m
      Nonstop
      PDX 4:50 PM
      Seattle - Portland | Sun, Nov 8 | Alaska Airlines
      TWD 4,439 TWD 12,564
      65% off
      65% off
      TWD 12,564 TWD 4,439
    • SEA 9:59 PM
      1h 1m
      Nonstop
      PDX 11:00 PM
      Seattle - Portland | Tue, Nov 3 | Alaska Airlines
      TWD 4,556 TWD 12,564
      64% off
      64% off
      TWD 12,564 TWD 4,556
    • SEA 10:55 PM
      1h 4m
      Nonstop
      PDX 11:59 PM
      Seattle - Portland | Sun, Nov 8 | Delta Air Lines
      TWD 4,733 TWD 12,564
      62% off
      62% off
      TWD 12,564 TWD 4,733
    • SEA 8:45 AM
      1h 3m
      Nonstop
      PDX 9:48 AM
      Seattle - Portland | Wed, Nov 4 | Alaska Airlines
      TWD 4,821
      62% off
      TWD 12,564 TWD 4,821
    • SEA 6:55 PM
      1h 5m
      Nonstop
      PDX 8:00 PM
      Seattle - Portland | Wed, Nov 4 | Delta Air Lines
      TWD 4,938
      61% off
      TWD 12,564 TWD 4,938
    • SEA 7:40 AM
      58m
      Nonstop
      PDX 8:38 AM
      Seattle - Portland | Mon, Nov 9 | Alaska Airlines
      TWD 6,584
      48% off
      TWD 12,564 TWD 6,584
    • SEA 8:45 AM
      1h 3m
      Nonstop
      PDX 9:48 AM
      Seattle - Portland | Fri, Nov 6 | Alaska Airlines
      TWD 7,981
      36% off
      TWD 12,564 TWD 7,981
    • SEA 7:54 PM
      56m
      Nonstop
      PDX 8:50 PM
      Seattle - Portland | Sat, Nov 7 | Alaska Airlines
      TWD 9,852
      22% off
      TWD 12,564 TWD 9,852
    • SEA 8:45 AM
      1h 3m
      Nonstop
      PDX 9:48 AM
      Seattle - Portland | Thu, Nov 5 | Alaska Airlines
      TWD 9,925
      21% off
      TWD 12,564 TWD 9,925
    • SEA 1:00 PM
      17h 25m
      1 stop
      PDX 2:00 PM
      Seattle - Portland | Wed, Nov 4 | Normal Airline
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    • SEA 9:23 PM
      54m
      Nonstop
      PDX 10:17 PM
      Seattle - Portland | Thu, Jan 7 | Alaska Airlines
      TWD 4,409 TWD 8,589
      49% off
      49% off
      TWD 8,589 TWD 4,409
    • SEA 9:23 PM
      54m
      Nonstop
      PDX 10:17 PM
      Seattle - Portland | Tue, Jan 5 | Alaska Airlines
      TWD 4,414 TWD 8,589
      49% off
      49% off
      TWD 8,589 TWD 4,414
    • SEA 6:54 PM
      55m
      Nonstop
      PDX 7:49 PM
      Seattle - Portland | Mon, Nov 23 | Alaska Airlines
      TWD 4,306 TWD 7,479
      42% off
      42% off
      TWD 7,479 TWD 4,306
    • SEA 8:57 PM
      55m
      Nonstop
      PDX 9:52 PM
      Seattle - Portland | Tue, Dec 1 | Alaska Airlines
      TWD 5,683
      24% off
      TWD 7,479 TWD 5,683
    • SEA 10:45 AM
      55m
      Nonstop
      PDX 11:40 AM
      Seattle - Portland | Thu, Nov 26 | Alaska Airlines
      TWD 5,830
      22% off
      TWD 7,479 TWD 5,830
    • SEA 8:59 PM
      55m
      Nonstop
      PDX 9:54 PM
      Seattle - Portland | Fri, Nov 27 | Alaska Airlines
      TWD 5,908
      21% off
      TWD 7,479 TWD 5,908
    • SEA 2:25 PM
      56m
      Nonstop
      PDX 3:21 PM
      Seattle - Portland | Tue, Dec 8 | Alaska Airlines
      TWD 4,272
      50% off
      TWD 8,589 TWD 4,272
    • SEA 2:25 PM
      56m
      Nonstop
      PDX 3:21 PM
      Seattle - Portland | Sat, Dec 12 | Alaska Airlines
      TWD 4,316
      50% off
      TWD 8,589 TWD 4,316
    • SEA 10:55 PM
      57m
      Nonstop
      PDX 11:52 PM
      Seattle - Portland | Sun, Dec 20 | Delta Air Lines
      TWD 3,890
      24% off
      TWD 5,104 TWD 3,890
    • SEA 1:00 PM
      17h 25m
      1 stop
      PDX 2:00 PM
      Seattle - Portland | Wed, Nov 4 | Normal Airline
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Displayed flight fares from Seattle to Portland are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from Seattle Tacoma Intl. Airport to Portland International Airport

What is the cheapest month for one-way flights from Seattle Tacoma Intl. Airport to Portland International Airport?

Data is based on average one-way flight prices from Seattle Tacoma Intl. Airport to Portland International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Seattle Tacoma Intl. Airport to Portland International Airport, the best time to buy is in April, with an average price of TWD 4,091. You’ll want to avoid October, when the average price can reach as high as TWD 8,749.

TWD 8,749
TWD 6,420
TWD 4,091
TWD 1,762
    Cheapest
  • TWD 5,408
    Nov
  • TWD 5,957
    Dec
  • TWD 4,801
    Jan
  • TWD 6,889
    Feb
  • TWD 8,425
    Mar
  • TWD 4,091
    Apr
  • TWD 6,136
    May
  • TWD 6,208
    Jun
  • TWD 6,818
    Jul
  • TWD 8,091
    Aug
  • TWD 6,228
    Sep
  • TWD 8,749
    Oct

What is the cheapest day of the week to fly from Seattle Tacoma Intl. Airport to Portland International Airport?

The data is based on the past 12 months and shows the average ticket prices from Seattle Tacoma Intl. Airport to Portland International Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from Seattle Tacoma Intl. Airport to Portland International Airport is Wednesday, with average fares typically lower than other days. You’ll want to avoid flying on Sunday, as ticket prices are usually the highest that day.

TWD 7,730
TWD 6,605
TWD 5,480
TWD 4,355
    Cheapest
  • TWD 6,247
    Mon
  • TWD 6,545
    Tue
  • TWD 5,480
    Wed
  • TWD 5,490
    Thu
  • TWD 6,509
    Fri
  • TWD 6,832
    Sat
  • TWD 7,730
    Sun

Which airline offers the cheapest flights from Seattle Tacoma Intl. Airport to Portland International Airport?

The cheapest airline flying from Seattle Tacoma Intl. Airport to Portland International Airport is Alaska Airlines (from TWD 3,214) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From TWD 3,214
Delta Air Lines
From TWD 3,498
Frontier Airlines
From TWD 4,316
Hahn Air
From TWD 4,840
United Airlines
From TWD 6,158
American Airlines
From TWD 10,205

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What is the flight schedule from Seattle Tacoma Intl. Airport to Portland International Airport?

Check the schedule for flights from Seattle to Portland and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS315

    Seattle Tacoma Intl. Airport

    8:59 PM

    SEA

    56m

    9:55 PM

    PDX

    S M T W T F S
    Search

  2. AS3169

    Seattle Tacoma Intl. Airport

    8:46 AM

    SEA

    1h 2m

    9:48 AM

    PDX

    S M T W T F S
    Search

  3. DL3953

    Seattle Tacoma Intl. Airport

    7:32 AM

    SEA

    1h 14m

    8:46 AM

    PDX

    S M T W T F S
    Search

  4. AS1386

    Seattle Tacoma Intl. Airport

    6:33 PM

    SEA

    2h 14m

    Nonstop

    8:47 PM

    SFO

    S M T W T F S
    Search

  5. AS2023

    San Francisco Intl. Airport

    9:41 PM

    SFO

    1h 50m

    Nonstop

    11:31 PM

    PDX

    S M T W T - S

  6. AS680

    Seattle Tacoma Intl. Airport

    3:48 PM

    SEA

    2h 13m

    Nonstop

    6:01 PM

    SFO

    S M T W T F S
    Search

  7. AS525

    San Francisco Intl. Airport

    6:59 PM

    SFO

    1h 48m

    Nonstop

    8:47 PM

    PDX

    S M T W T F S

  8. AS528

    Seattle Tacoma Intl. Airport

    8:54 AM

    SEA

    2h 21m

    Nonstop

    11:15 AM

    SFO

    S M T W T F S
    Search

  9. AS235

    San Francisco Intl. Airport

    11:53 AM

    SFO

    1h 49m

    Nonstop

    1:42 PM

    PDX

    S M T W T F S

  10. AS619

    Seattle Tacoma Intl. Airport

    7:30 AM

    SEA

    2h 15m

    Nonstop

    9:45 AM

    SFO

    S M T W T F S
    Search

  11. AS235

    San Francisco Intl. Airport

    11:53 AM

    SFO

    1h 49m

    Nonstop

    1:42 PM

    PDX

    S M T W T F S

  12. AS1379

    Seattle Tacoma Intl. Airport

    1:35 PM

    SEA

    2h 14m

    Nonstop

    3:49 PM

    SFO

    - - T W - - S
    Search

  13. AS525

    San Francisco Intl. Airport

    6:59 PM

    SFO

    1h 48m

    Nonstop

    8:47 PM

    PDX

    S M T W T F S

  14. AS688

    Seattle Tacoma Intl. Airport

    1:20 PM

    SEA

    2h 11m

    Nonstop

    3:31 PM

    SFO

    S M T W T - S
    Search

  15. AS525

    San Francisco Intl. Airport

    6:59 PM

    SFO

    1h 48m

    Nonstop

    8:47 PM

    PDX

    S M T W T F S

  16. AS590

    Seattle Tacoma Intl. Airport

    7:39 PM

    SEA

    2h 11m

    Nonstop

    9:50 PM

    SFO

    S - - W T - S
    Search

  17. AS2023

    San Francisco Intl. Airport

    9:41 PM

    SFO

    1h 50m

    Nonstop

    11:31 PM

    PDX

    S M T W T - S
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About Seattle Tacoma Intl. Airport and Portland International Airport

Learn about Seattle Tacoma Intl. Airport (SEA) and Portland International Airport (PDX) — including location, terminals, transportation, and travel tips.

Flight distance 207.68 km
Cheapest one-way ticket price TWD 3,214
Cheapest return ticket price TWD 5,438

FAQs for Seattle Tacoma Intl. Airport to Portland International Airport Flights

  • How long is the flight from Seattle Tacoma Intl. Airport to Portland International Airport?

    Seattle Tacoma Intl. Airport to Portland International Airport takes about 33 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 13 daily flights from Seattle Tacoma Intl. Airport (SEA) to Portland International Airport (PDX).
  • The earliest flight from Seattle Tacoma Intl. Airport to Portland International Airport departs at 07:20, and the last departs at 22:59, with about 23 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Seattle Tacoma Intl. Airport (SEA) to Portland International Airport (PDX) is quite popular. Without considering departure times or holidays, tickets cost around TWD 9,519 in November, the most expensive month to book this route.
  • The earliest flight departs from Seattle Tacoma Intl. Airport (SEA) at 05:21 and arrives in Portland International Airport (PDX) at 06:20.
  • The latest flight departs from Seattle Tacoma Intl. Airport (SEA) at 21:40 and arrives in Portland International Airport (PDX) at 22:45.
  • Delta Air Lines is a very popular airline operating an average of 1746 flights per month.
  • One-way flights from Seattle Tacoma Intl. Airport to Portland International Airport currently start from TWD 3,214, and round-trip fares start from TWD 5,438. The current lowest fare is a Alaska Airlines flight departing on Sun, Nov 29; prices may vary depending on availability.
  • Yes. Alaska Airlines, Delta Air Lines, Condor and Sun Country Airlines operate direct flights from Seattle Tacoma Intl. Airport to Portland International Airport, with an average flight time of 30 minutes, and around 141 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Seattle Tacoma Intl. Airport to Portland International Airport is TWD 10,601. Prices may vary depending on the departure date, airline, and availability.
  • WestJet, Condor and Sun Country Airlines are the most popular budget airlines flying from Seattle Tacoma Intl. Airport to Portland International Airport, with one-way fares starting from TWD 3,214. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Seattle Tacoma Intl. Airport to Portland International Airport operates around 141 weekly flights, mainly by Alaska Airlines, Delta Air Lines and Condor. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Seattle Tacoma Intl. Airport and Portland International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Popular Destinations

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.