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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 SGD 126 and round-trip from SGD 127. 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
        SGD 127 SGD 225
        44% off
        44% off
        SGD 225 SGD 127
      • 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
        SGD 129 SGD 225
        43% off
        43% off
        SGD 225 SGD 129
      • 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
        SGD 134 SGD 225
        40% off
        40% off
        SGD 225 SGD 134
      • 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
        SGD 143
        36% off
        SGD 225 SGD 143
      • 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
        SGD 143
        36% off
        SGD 225 SGD 143
      • 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
        SGD 143
        36% off
        SGD 225 SGD 143
      • 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
        SGD 143
        36% off
        SGD 225 SGD 143
      • 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
        SGD 143
        36% off
        SGD 225 SGD 143
      • 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
        SGD 144
        36% off
        SGD 225 SGD 144
      • PDX 5:00 AM
        1h 2m
        Nonstop
        SEA 6:02 AM
        Portland - Seattle | Fri, Dec 4 | Alaska Airlines
        SEA 11:10 PM
        1h
        Nonstop
        PDX 12:10 AM
        Seattle - Portland | Tue, Dec 8 | Alaska Airlines
        SGD 145
        36% off
        SGD 225 SGD 145
      • 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
        SGD 150
        33% off
        SGD 225 SGD 150
      • PDX 3:31 PM
        1h 14m
        Nonstop
        SEA 4:45 PM
        Portland - Seattle | Thu, Oct 15 | Delta Air Lines
        SEA 7:32 AM
        1h 14m
        Nonstop
        PDX 8:46 AM
        Seattle - Portland | Sun, Oct 18 | Delta Air Lines
        SGD 166
        26% off
        SGD 225 SGD 166
      • PDX 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Portland - Seattle | Fri, Oct 16 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        PDX 4:00 PM
        Seattle - Portland | Sun, Oct 18 | Normal Airline
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      • Cheapest nonstop
        PDX 5:47 PM
        1h 15m
        Nonstop
        SEA 7:02 PM
        Portland - Seattle | Sat, Dec 5 | Delta Air Lines
        SGD 139 SGD 213
        35% off
        35% off
        SGD 213 SGD 139
      • PDX 12:29 PM
        1h 10m
        Nonstop
        SEA 1:39 PM
        Portland - Seattle | Sun, Nov 1 | Delta Air Lines
        SGD 140 SGD 213
        34% off
        34% off
        SGD 213 SGD 140
      • PDX 11:54 AM
        8h
        1 stop
        SEA 7:54 PM
        Portland - Seattle | Wed, Nov 11 | Alaska Airlines
        SGD 126 SGD 213
        41% off
        41% off
        SGD 213 SGD 126
      • PDX 7:04 AM
        7h 24m
        1 stop
        SEA 2:28 PM
        Portland - Seattle | Fri, Nov 6 | Alaska Airlines
        SGD 136
        36% off
        SGD 213 SGD 136
      • PDX 10:48 AM
        6h 45m
        1 stop
        SEA 5:33 PM
        Portland - Seattle | Mon, Oct 26 | Alaska Airlines
        SGD 152
        28% off
        SGD 213 SGD 152
      • PDX 2:45 PM
        7h 15m
        1 stop
        SEA 10:00 PM
        Portland - Seattle | Thu, Nov 19 | Alaska Airlines
        SGD 157
        26% off
        SGD 213 SGD 157
      • PDX 10:56 AM
        7h 17m
        1 stop
        SEA 6:13 PM
        Portland - Seattle | Fri, Dec 4 | Alaska Airlines
        SGD 157
        26% off
        SGD 213 SGD 157
      • PDX 7:04 AM
        6h 45m
        1 stop
        SEA 1:49 PM
        Portland - Seattle | Sat, Nov 7 | Alaska Airlines
        SGD 157
        26% off
        SGD 213 SGD 157
      • PDX 2:45 PM
        7h 15m
        1 stop
        SEA 10:00 PM
        Portland - Seattle | Thu, Nov 5 | Alaska Airlines
        SGD 157
        26% off
        SGD 213 SGD 157
      • PDX 2:35 PM
        7h 25m
        1 stop
        SEA 10:00 PM
        Portland - Seattle | Fri, Oct 16 | Alaska Airlines
        SGD 157
        26% off
        SGD 213 SGD 157
      • PDX 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Portland - Seattle | Fri, Oct 16 | 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 SGD 135. Try to avoid August, when prices are highest, averaging around SGD 293.

SGD 293
SGD 214
SGD 135
SGD 56
    Cheapest
  • SGD 178
    Oct
  • SGD 244
    Nov
  • SGD 197
    Dec
  • SGD 135
    Jan
  • SGD 161
    Feb
  • SGD 284
    Mar
  • SGD 240
    Apr
  • SGD 215
    May
  • SGD 264
    Jun
  • SGD 228
    Jul
  • SGD 293
    Aug
  • SGD 262
    Sep

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.

SGD 279
SGD 232
SGD 184
SGD 137
    Cheapest
  • SGD 239
    Mon
  • SGD 242
    Tue
  • SGD 211
    Wed
  • SGD 243
    Thu
  • SGD 238
    Fri
  • SGD 279
    Sat
  • SGD 184
    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 SGD 126) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From SGD 126
Delta Air Lines
From SGD 139
Hahn Air
From SGD 195
Frontier Airlines
From SGD 232
United Airlines
From SGD 242
American Airlines
From SGD 522

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. AS3342

    Portland International Airport

    2:30 PM

    PDX

    1h 5m

    3:35 PM

    SEA

    S M T W T F S
    Search

  2. AS427

    Portland International Airport

    7:09 AM

    PDX

    1h 16m

    8:25 AM

    SEA

    S M T W T F S
    Search

  3. DL3918

    Portland International Airport

    5:49 PM

    PDX

    1h 16m

    7:05 PM

    SEA

    S M T W T F S
    Search

  4. DL3820

    Portland International Airport

    8:44 PM

    PDX

    1h 16m

    10:00 PM

    SEA

    S M T W T - S
    Search

  5. AS526

    Portland International Airport

    7:00 AM

    PDX

    2h

    Nonstop

    9:00 AM

    SFO

    S M T W T F S
    Search

  6. AS1327

    San Francisco International Airport

    6:00 AM

    SFO

    2h 17m

    Nonstop

    8:17 AM

    SEA

    S M T W T F S

  7. AS236

    Portland International Airport

    2:45 PM

    PDX

    2h 1m

    Nonstop

    4:46 PM

    SFO

    S M T W T F S
    Search

  8. AS1340

    San Francisco International Airport

    5:44 PM

    SFO

    2h 14m

    Nonstop

    7:58 PM

    SEA

    S M T W T F S

  9. AS236

    Portland International Airport

    2:45 PM

    PDX

    2h 1m

    Nonstop

    4:46 PM

    SFO

    S M T W T F S
    Search

  10. AS620

    San Francisco International Airport

    6:07 AM

    SFO

    2h 13m

    Nonstop

    8:20 AM

    SEA

    S M T W - F S

  11. AS526

    Portland International Airport

    7:00 AM

    PDX

    2h

    Nonstop

    9:00 AM

    SFO

    S M T W T F S
    Search

  12. AS580

    San Francisco International Airport

    11:00 AM

    SFO

    2h 16m

    Nonstop

    1:16 PM

    SEA

    S M T W T F S

  13. AS1403

    Portland International Airport

    10:48 AM

    PDX

    2h

    Nonstop

    12:48 PM

    SFO

    S M T W T F S
    Search

  14. AS630

    San Francisco International Airport

    3:21 PM

    SFO

    2h 12m

    Nonstop

    5:33 PM

    SEA

    S M T W T F S

  15. AS526

    Portland International Airport

    7:00 AM

    PDX

    2h

    Nonstop

    9:00 AM

    SFO

    S M T W T F S
    Search

  16. AS656

    San Francisco International Airport

    1:51 PM

    SFO

    2h 13m

    Nonstop

    4:04 PM

    SEA

    S M T W T F 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 distance 207.68 km
Cheapest one-way ticket price SGD 126
Cheapest return ticket price SGD 127

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 35 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 05:06, and the last departs at 21:32, with about 38 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 SGD 378 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 SGD 126, and round-trip fares start from SGD 127. The current lowest fare is a Alaska Airlines flight departing on Wed, Nov 11; prices may vary depending on availability.
  • Yes. Alaska Airlines, Delta Air Lines and Icelandair operate direct flights from Portland International Airport to Seattle-Tacoma International Airport, with an average flight time of 34 minutes, and around 138 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 SGD 339. Prices may vary depending on the departure date, airline, and availability.
  • WestJet and Condor are the most popular budget airlines flying from Portland International Airport to Seattle-Tacoma International Airport, with one-way fares starting from SGD 126. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Portland International Airport to Seattle-Tacoma International Airport operates around 140 weekly flights, mainly by Alaska Airlines, Delta Air Lines and Icelandair. 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.