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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 €74 and round-trip from €87. 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 | Thu, Oct 22 | Alaska Airlines
        SEA 7:20 AM
        1h 8m
        Nonstop
        PDX 8:28 AM
        Seattle - Portland | Thu, Oct 29 | Alaska Airlines
        €87 €136
        36% off
        36% off
        €136 €87
      • PDX 7:09 AM
        1h 16m
        Nonstop
        SEA 8:25 AM
        Portland - Seattle | Sat, Oct 24 | Alaska Airlines
        SEA 7:20 AM
        1h 8m
        Nonstop
        PDX 8:28 AM
        Seattle - Portland | Sat, Oct 31 | Alaska Airlines
        €88 €136
        35% off
        35% off
        €136 €88
      • PDX 8:44 PM
        1h 21m
        Nonstop
        SEA 10:05 PM
        Portland - Seattle | Sun, Oct 4 | Delta Air Lines
        SEA 7:30 AM
        1h 13m
        Nonstop
        PDX 8:43 AM
        Seattle - Portland | Wed, Oct 7 | Delta Air Lines
        €89 €136
        35% off
        35% off
        €136 €89
      • PDX 7:09 AM
        1h 16m
        Nonstop
        SEA 8:25 AM
        Portland - Seattle | Sun, Oct 25 | Alaska Airlines
        SEA 12:13 PM
        1h 11m
        Nonstop
        PDX 1:24 PM
        Seattle - Portland | Sun, Nov 1 | Alaska Airlines
        €91
        33% off
        €136 €91
      • PDX 9:32 PM
        1h 7m
        Nonstop
        SEA 10:39 PM
        Portland - Seattle | Sun, Oct 4 | Alaska Airlines
        SEA 7:20 AM
        1h 8m
        Nonstop
        PDX 8:28 AM
        Seattle - Portland | Wed, Oct 7 | Alaska Airlines
        €94
        31% off
        €136 €94
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 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
        €97
        28% off
        €136 €97
      • PDX 3:31 PM
        1h 14m
        Nonstop
        SEA 4:45 PM
        Portland - Seattle | Mon, Nov 9 | Delta Air Lines
        SEA 7:20 AM
        1h 16m
        Nonstop
        PDX 8:36 AM
        Seattle - Portland | Sat, Nov 14 | Delta Air Lines
        €97
        28% off
        €136 €97
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Sun, Nov 8 | Delta Air Lines
        SEA 7:20 AM
        1h 16m
        Nonstop
        PDX 8:36 AM
        Seattle - Portland | Sat, Nov 14 | Delta Air Lines
        €97
        28% off
        €136 €97
      • PDX 3:34 PM
        1h 14m
        Nonstop
        SEA 4:48 PM
        Portland - Seattle | Tue, Nov 10 | Delta Air Lines
        SEA 7:20 AM
        1h 16m
        Nonstop
        PDX 8:36 AM
        Seattle - Portland | Sat, Nov 14 | Delta Air Lines
        €97
        28% off
        €136 €97
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Sat, Oct 24 | Delta Air Lines
        SEA 7:32 AM
        1h 14m
        Nonstop
        PDX 8:46 AM
        Seattle - Portland | Sat, Oct 31 | Delta Air Lines
        €98
        28% off
        €136 €98
      • PDX 8:44 PM
        1h 16m
        Nonstop
        SEA 10:00 PM
        Portland - Seattle | Sun, Oct 25 | Delta Air Lines
        SEA 7:32 AM
        1h 14m
        Nonstop
        PDX 8:46 AM
        Seattle - Portland | Sun, Nov 1 | Delta Air Lines
        €102
        25% off
        €136 €102
      • PDX 3:31 PM
        1h 14m
        Nonstop
        SEA 4:45 PM
        Portland - Seattle | Sun, Oct 18 | Delta Air Lines
        SEA 8:55 PM
        1h 1m
        Nonstop
        PDX 9:56 PM
        Seattle - Portland | Wed, Oct 21 | Delta Air Lines
        €106
        22% off
        €136 €106
      • PDX 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Portland - Seattle | Wed, Sep 23 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        PDX 4:00 PM
        Seattle - Portland | Fri, Sep 25 | Normal Airline
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      • Cheapest nonstop
        PDX 2:30 PM
        1h 5m
        Nonstop
        SEA 3:35 PM
        Portland - Seattle | Tue, Nov 3 | Alaska Airlines
        €74 €118
        37% off
        37% off
        €118 €74
      • PDX 8:09 AM
        1h 1m
        Nonstop
        SEA 9:10 AM
        Portland - Seattle | Sat, Oct 17 | Alaska Airlines
        €74 €118
        37% off
        37% off
        €118 €74
      • PDX 3:48 PM
        1h 1m
        Nonstop
        SEA 4:49 PM
        Portland - Seattle | Tue, Oct 20 | Alaska Airlines
        €76 €118
        36% off
        36% off
        €118 €76
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Tue, Nov 3 | Delta Air Lines
        €77
        35% off
        €118 €77
      • PDX 8:44 PM
        1h 16m
        Nonstop
        SEA 10:00 PM
        Portland - Seattle | Fri, Oct 16 | Delta Air Lines
        €77
        35% off
        €118 €77
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Sat, Oct 17 | Delta Air Lines
        €77
        35% off
        €118 €77
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Tue, Oct 20 | Delta Air Lines
        €78
        34% off
        €118 €78
      • PDX 8:44 PM
        1h 16m
        Nonstop
        SEA 10:00 PM
        Portland - Seattle | Sun, Nov 1 | Delta Air Lines
        €78
        34% off
        €118 €78
      • PDX 5:49 PM
        1h 16m
        Nonstop
        SEA 7:05 PM
        Portland - Seattle | Tue, Oct 27 | Delta Air Lines
        €92
        22% off
        €118 €92
      • PDX 2:53 PM
        6h 32m
        1 stop
        SEA 9:25 PM
        Portland - Seattle | Fri, Oct 16 | Alaska Airlines
        €81
        31% off
        €118 €81
      • PDX 11:54 AM
        8h
        1 stop
        SEA 7:54 PM
        Portland - Seattle | Thu, Nov 12 | Alaska Airlines
        €86
        27% off
        €118 €86
      • PDX 10:48 AM
        7h 45m
        1 stop
        SEA 6:33 PM
        Portland - Seattle | Tue, Oct 27 | Alaska Airlines
        €86
        27% off
        €118 €86
      • PDX 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Portland - Seattle | Wed, Sep 23 | Normal Airline
        Find more flights
        Find more flights

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 September, with an average price of €92. Try to avoid August, when prices are highest, averaging around €199.

€199
€146
€92
€39
  • €92
    Sep
  • €104
    Oct
  • €166
    Nov
  • €134
    Dec
  • €92
    Jan
  • €110
    Feb
  • €193
    Mar
  • €164
    Apr
  • €147
    May
  • €180
    Jun
  • €155
    Jul
  • €199
    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.

€190
€156
€122
€88
    Cheapest
  • €163
    Mon
  • €143
    Tue
  • €144
    Wed
  • €164
    Thu
  • €159
    Fri
  • €190
    Sat
  • €122
    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 €74) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From €74
Delta Air Lines
From €77
Hahn Air
From €129
United Airlines
From €164
Air Canada
From €238
American Airlines
From €342

Find more flights and airlines

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

    5:49 PM

    PDX

    1h 15m

    7:04 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. AS526

    Portland International Airport

    7:18 AM

    PDX

    2h 5m

    Nonstop

    9:23 AM

    SFO

    S M T W T F S
    Search

  6. AS580

    San Francisco International Airport

    11:00 AM

    SFO

    2h 18m

    Nonstop

    1:18 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

    7:00 AM

    SFO

    2h 16m

    Nonstop

    9:16 AM

    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

    10:36 AM

    SFO

    2h 15m

    Nonstop

    12:51 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
Find more flights and airlines

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 price€74
Cheapest return ticket price€87

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 €273 in September, 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 €74, and round-trip fares start from €87. The current lowest fare is a Alaska Airlines flight departing on Tue, Nov 3; 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 €211. 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 €74. 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.