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Portland International Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Portland International Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from TWD 2,670 and round-trip from TWD 3,149. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        PDX 9:31 AM
        1h 8m
        Nonstop
        SEA 10:39 AM
        Portland - Seattle | Mon, Oct 19 | Alaska Airlines
        SEA 7:20 AM
        1h 8m
        Nonstop
        PDX 8:28 AM
        Seattle - Portland | Mon, Oct 26 | Alaska Airlines
        TWD 3,149 TWD 4,624
        32% off
        32% off
        TWD 4,624 TWD 3,149
      • PDX 7:09 AM
        1h 16m
        Nonstop
        SEA 8:25 AM
        Portland - Seattle | Wed, Oct 21 | Alaska Airlines
        SEA 7:20 AM
        1h 8m
        Nonstop
        PDX 8:28 AM
        Seattle - Portland | Wed, Oct 28 | Alaska Airlines
        TWD 3,187 TWD 4,624
        31% off
        31% off
        TWD 4,624 TWD 3,187
      • PDX 8:44 PM
        1h 21m
        Nonstop
        SEA 10:05 PM
        Portland - Seattle | Thu, Oct 1 | Delta Air Lines
        SEA 7:30 AM
        1h 13m
        Nonstop
        PDX 8:43 AM
        Seattle - Portland | Sun, Oct 4 | Delta Air Lines
        TWD 3,225 TWD 4,624
        30% off
        30% off
        TWD 4,624 TWD 3,225
      • PDX 7:09 AM
        1h 16m
        Nonstop
        SEA 8:25 AM
        Portland - Seattle | Thu, Oct 22 | Alaska Airlines
        SEA 12:13 PM
        1h 11m
        Nonstop
        PDX 1:24 PM
        Seattle - Portland | Thu, Oct 29 | Alaska Airlines
        TWD 3,320
        28% off
        TWD 4,624 TWD 3,320
      • PDX 9:32 PM
        1h 7m
        Nonstop
        SEA 10:39 PM
        Portland - Seattle | Thu, Oct 1 | Alaska Airlines
        SEA 7:20 AM
        1h 8m
        Nonstop
        PDX 8:28 AM
        Seattle - Portland | Sun, Oct 4 | Alaska Airlines
        TWD 3,410
        26% off
        TWD 4,624 TWD 3,410
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Mon, Oct 19 | Delta Air Lines
        SEA 7:32 AM
        1h 14m
        Nonstop
        PDX 8:46 AM
        Seattle - Portland | Mon, Oct 26 | Delta Air Lines
        TWD 3,528
        24% off
        TWD 4,624 TWD 3,528
      • PDX 3:31 PM
        1h 14m
        Nonstop
        SEA 4:45 PM
        Portland - Seattle | Fri, Nov 6 | Delta Air Lines
        SEA 7:20 AM
        1h 16m
        Nonstop
        PDX 8:36 AM
        Seattle - Portland | Wed, Nov 11 | Delta Air Lines
        TWD 3,528
        24% off
        TWD 4,624 TWD 3,528
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Thu, Nov 5 | Delta Air Lines
        SEA 7:20 AM
        1h 16m
        Nonstop
        PDX 8:36 AM
        Seattle - Portland | Wed, Nov 11 | Delta Air Lines
        TWD 3,528
        24% off
        TWD 4,624 TWD 3,528
      • PDX 3:34 PM
        1h 14m
        Nonstop
        SEA 4:48 PM
        Portland - Seattle | Sat, Nov 7 | Delta Air Lines
        SEA 7:20 AM
        1h 16m
        Nonstop
        PDX 8:36 AM
        Seattle - Portland | Wed, Nov 11 | Delta Air Lines
        TWD 3,528
        24% off
        TWD 4,624 TWD 3,528
      • PDX 7:35 PM
        1h 15m
        Nonstop
        SEA 8:50 PM
        Portland - Seattle | Wed, Nov 18 | Delta Air Lines
        SEA 7:20 AM
        1h 16m
        Nonstop
        PDX 8:36 AM
        Seattle - Portland | Mon, Nov 23 | Delta Air Lines
        TWD 3,528
        24% off
        TWD 4,624 TWD 3,528
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Wed, Oct 21 | Delta Air Lines
        SEA 7:32 AM
        1h 14m
        Nonstop
        PDX 8:46 AM
        Seattle - Portland | Wed, Oct 28 | Delta Air Lines
        TWD 3,562
        23% off
        TWD 4,624 TWD 3,562
      • PDX 8:44 PM
        1h 16m
        Nonstop
        SEA 10:00 PM
        Portland - Seattle | Thu, Oct 22 | Delta Air Lines
        SEA 7:32 AM
        1h 14m
        Nonstop
        PDX 8:46 AM
        Seattle - Portland | Thu, Oct 29 | Delta Air Lines
        TWD 3,699
        20% off
        TWD 4,624 TWD 3,699
      • PDX 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Portland - Seattle | Thu, Sep 24 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        PDX 4:00 PM
        Seattle - Portland | Sat, Sep 26 | Normal Airline
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      • Cheapest nonstop
        PDX 2:30 PM
        1h 5m
        Nonstop
        SEA 3:35 PM
        Portland - Seattle | Wed, Nov 4 | Alaska Airlines
        TWD 2,670 TWD 4,162
        36% off
        36% off
        TWD 4,162 TWD 2,670
      • PDX 8:09 AM
        1h 1m
        Nonstop
        SEA 9:10 AM
        Portland - Seattle | Sun, Oct 18 | Alaska Airlines
        TWD 2,699 TWD 4,162
        35% off
        35% off
        TWD 4,162 TWD 2,699
      • PDX 3:48 PM
        1h 1m
        Nonstop
        SEA 4:49 PM
        Portland - Seattle | Wed, Oct 21 | Alaska Airlines
        TWD 2,760 TWD 4,162
        34% off
        34% off
        TWD 4,162 TWD 2,760
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Wed, Nov 4 | Delta Air Lines
        TWD 2,789
        33% off
        TWD 4,162 TWD 2,789
      • PDX 8:44 PM
        1h 16m
        Nonstop
        SEA 10:00 PM
        Portland - Seattle | Sat, Oct 17 | Delta Air Lines
        TWD 2,803
        33% off
        TWD 4,162 TWD 2,803
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Sun, Oct 18 | Delta Air Lines
        TWD 2,803
        33% off
        TWD 4,162 TWD 2,803
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Wed, Oct 21 | Delta Air Lines
        TWD 2,812
        32% off
        TWD 4,162 TWD 2,812
      • PDX 8:44 PM
        1h 16m
        Nonstop
        SEA 10:00 PM
        Portland - Seattle | Mon, Nov 2 | Delta Air Lines
        TWD 2,827
        32% off
        TWD 4,162 TWD 2,827
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Wed, Oct 28 | Delta Air Lines
        TWD 3,329
        20% off
        TWD 4,162 TWD 3,329
      • PDX 2:53 PM
        6h 32m
        1 stop
        SEA 9:25 PM
        Portland - Seattle | Sat, Oct 17 | Alaska Airlines
        TWD 2,940
        28% off
        TWD 4,162 TWD 2,940
      • PDX 11:54 AM
        8h
        1 stop
        SEA 7:54 PM
        Portland - Seattle | Fri, Nov 13 | Alaska Airlines
        TWD 3,111
        25% off
        TWD 4,162 TWD 3,111
      • PDX 10:48 AM
        7h 45m
        1 stop
        SEA 6:33 PM
        Portland - Seattle | Wed, Oct 28 | Alaska Airlines
        TWD 3,135
        25% off
        TWD 4,162 TWD 3,135
      • PDX 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Portland - Seattle | Thu, Sep 24 | Normal Airline
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Flight fares from Portland International Airport to Seattle-Tacoma International Airport are based on average airline prices for the next 3 months, according to Trip.com’s latest data.

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

Which month has the lowest one-way flight price from Portland International Airport to Seattle-Tacoma International Airport?

The data is based on the average one-way flight prices on Trip.com for flights from Portland International Airport to Seattle-Tacoma International Airport across different months over the past 12 months.

Based on Trip.com data from the past 12 months, if you’re looking for low one-way flight fares from Portland International Airport to Seattle-Tacoma International Airport, the best time to book is in January, with an average price of TWD 3,332. Try to avoid August, when prices are highest, averaging around TWD 7,254.

TWD 7,254
TWD 5,293
TWD 3,332
TWD 1,371
    Cheapest
  • TWD 3,342
    Sep
  • TWD 3,778
    Oct
  • TWD 6,032
    Nov
  • TWD 4,878
    Dec
  • TWD 3,332
    Jan
  • TWD 3,991
    Feb
  • TWD 7,031
    Mar
  • TWD 5,951
    Apr
  • TWD 5,330
    May
  • TWD 6,532
    Jun
  • TWD 5,641
    Jul
  • TWD 7,254
    Aug

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

The data is based on the average flight prices on Trip.com from Portland International Airport to Seattle-Tacoma International Airport across different days of the week over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to depart from Portland International Airport to Seattle-Tacoma International Airport is usually Sunday, with average fares typically lower than other days. Try to avoid departing on Saturday, as prices are usually the highest on that day.

TWD 6,908
TWD 5,669
TWD 4,430
TWD 3,191
    Cheapest
  • TWD 5,910
    Mon
  • TWD 5,207
    Tue
  • TWD 5,223
    Wed
  • TWD 5,967
    Thu
  • TWD 5,791
    Fri
  • TWD 6,908
    Sat
  • TWD 4,430
    Sun

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

The cheapest airline flying from Portland International Airport to Seattle-Tacoma International Airport is Alaska Airlines (from TWD 2,670) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From TWD 2,670
Delta Air Lines
From TWD 2,779
Hahn Air
From TWD 4,685
United Airlines
From TWD 5,980
Air Canada
From TWD 8,673
American Airlines
From TWD 12,466

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

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS452

    Portland International Airport

    9:32 PM

    PDX

    1h 7m

    10:39 PM

    SEA

    S M T W T F S
    Search

  2. DL3918

    Portland International Airport

    5:50 PM

    PDX

    1h 15m

    7:05 PM

    SEA

    S M T W T F S
    Search

  3. DL3818

    Portland International Airport

    11:20 AM

    PDX

    1h 17m

    12:37 PM

    SEA

    S M T W T F S
    Search

  4. DL4096

    Portland International Airport

    8:44 PM

    PDX

    1h 21m

    10:05 PM

    SEA

    S M T W T - S
    Search

  5. AS236

    Portland International Airport

    2:46 PM

    PDX

    1h 53m

    Nonstop

    4:39 PM

    SFO

    S M T W T F S
    Search

  6. AS1340

    San Francisco International Airport

    4:51 PM

    SFO

    2h 16m

    Nonstop

    7:07 PM

    SEA

    S M T W T F S

  7. AS236

    Portland International Airport

    2:46 PM

    PDX

    1h 53m

    Nonstop

    4:39 PM

    SFO

    S M T W T F S
    Search

  8. AS591

    San Francisco International Airport

    7:22 PM

    SFO

    2h 18m

    Nonstop

    9:40 PM

    SEA

    S M T W T F S

  9. AS526

    Portland International Airport

    7:18 AM

    PDX

    2h 5m

    Nonstop

    9:23 AM

    SFO

    S M T W T F S
    Search

  10. AS656

    San Francisco International Airport

    1:51 PM

    SFO

    2h 13m

    Nonstop

    4:04 PM

    SEA

    S M T W T - S

  11. AS2190

    Portland International Airport

    8:14 AM

    PDX

    56m

    9:10 AM

    SEA

    S M T W T F S
    Search

  12. AS1307

    Portland International Airport

    2:35 PM

    PDX

    1h 39m

    Nonstop

    4:14 PM

    SMF

    S M T W T F S
    Search

  13. AS1723

    Sacramento International Airport

    7:52 PM

    SMF

    2h 8m

    Nonstop

    10:00 PM

    SEA

    S M - W T - S

  14. AS236

    Portland International Airport

    2:46 PM

    PDX

    1h 53m

    Nonstop

    4:39 PM

    SFO

    S M T W T F S
    Search

  15. AS620

    San Francisco International Airport

    6:07 AM

    SFO

    2h 13m

    Nonstop

    8:20 AM

    SEA

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

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

Flight distance207.68 km
Cheapest one-way ticket priceTWD 2,670
Cheapest return ticket priceTWD 3,149

FAQs for Portland International Airport to Seattle-Tacoma International Airport Flights

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

    Portland International Airport to Seattle-Tacoma International Airport takes about 36 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 14 daily flights from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Portland International Airport to Seattle-Tacoma International Airport departs at 05:07, and the last departs at 21:32, with about 22 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around TWD 7,208 in October, the most expensive month to book this route.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • Delta Air Lines is a very popular airline operating an average of 1385 flights per month.
  • One-way flights from Portland International Airport to Seattle-Tacoma International Airport currently start from TWD 2,670, and round-trip fares start from TWD 3,149. The current lowest fare is a Alaska Airlines flight departing on Wed, Nov 4; prices may vary depending on availability.
  • Yes. Alaska Airlines, Delta Air Lines and Korean Air operate direct flights from Portland International Airport to Seattle-Tacoma International Airport, with an average flight time of 32 minutes, and around 140 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 Portland International Airport to Seattle-Tacoma International Airport is TWD 7,670. Prices may vary depending on the departure date, airline, and availability.
  • Condor and WestJet are the most popular budget airlines flying from Portland International Airport to Seattle-Tacoma International Airport, with one-way fares starting from TWD 2,670. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Portland International Airport to Seattle-Tacoma International Airport operates around 99 weekly flights, mainly by Alaska Airlines, Delta Air Lines and Korean Air. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Portland International Airport and Seattle-Tacoma 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.

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

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before payment. Charges for checked baggage, onboard meals, Wi-Fi, and other optional services may also appear in the flight cards where applicable.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and for many routes the data may refresh in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.