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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 US$ 84 and round-trip from US$ 99. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        PDX 09:31
        1h 8m
        Direct
        SEA 10:39
        Portland - Seattle | Thu, Oct 29 | Alaska Airlines
        SEA 07:20
        1h 8m
        Direct
        PDX 08:28
        Seattle - Portland | Thu, Nov 5 | Alaska Airlines
        US$ 99 US$ 165
        40% off
        40% off
        US$ 165 US$ 99
      • PDX 07:09
        1h 16m
        Direct
        SEA 08:25
        Portland - Seattle | Sat, Oct 31 | Alaska Airlines
        SEA 07:20
        1h 8m
        Direct
        PDX 08:28
        Seattle - Portland | Sat, Nov 7 | Alaska Airlines
        US$ 101 US$ 165
        39% off
        39% off
        US$ 165 US$ 101
      • PDX 20:44
        1h 21m
        Direct
        SEA 22:05
        Portland - Seattle | Sun, Oct 11 | Delta Air Lines
        SEA 07:30
        1h 13m
        Direct
        PDX 08:43
        Seattle - Portland | Wed, Oct 14 | Delta Air Lines
        US$ 102 US$ 165
        38% off
        38% off
        US$ 165 US$ 102
      • PDX 07:09
        1h 16m
        Direct
        SEA 08:25
        Portland - Seattle | Sun, Nov 1 | Alaska Airlines
        SEA 12:13
        1h 11m
        Direct
        PDX 13:24
        Seattle - Portland | Sun, Nov 8 | Alaska Airlines
        US$ 105
        36% off
        US$ 165 US$ 105
      • PDX 21:32
        1h 7m
        Direct
        SEA 22:39
        Portland - Seattle | Sun, Oct 11 | Alaska Airlines
        SEA 07:20
        1h 8m
        Direct
        PDX 08:28
        Seattle - Portland | Wed, Oct 14 | Alaska Airlines
        US$ 108
        35% off
        US$ 165 US$ 108
      • PDX 07:10
        1h 19m
        Direct
        SEA 08:29
        Portland - Seattle | Mon, Oct 19 | Delta Air Lines
        SEA 07:32
        1h 14m
        Direct
        PDX 08:46
        Seattle - Portland | Wed, Oct 21 | Delta Air Lines
        US$ 111
        33% off
        US$ 165 US$ 111
      • PDX 17:49
        1h 16m
        Direct
        SEA 19:05
        Portland - Seattle | Thu, Oct 29 | Delta Air Lines
        SEA 07:32
        1h 14m
        Direct
        PDX 08:46
        Seattle - Portland | Thu, Nov 5 | Delta Air Lines
        US$ 111
        33% off
        US$ 165 US$ 111
      • PDX 15:31
        1h 14m
        Direct
        SEA 16:45
        Portland - Seattle | Mon, Nov 16 | Delta Air Lines
        SEA 07:20
        1h 16m
        Direct
        PDX 08:36
        Seattle - Portland | Sat, Nov 21 | Delta Air Lines
        US$ 111
        33% off
        US$ 165 US$ 111
      • PDX 17:49
        1h 16m
        Direct
        SEA 19:05
        Portland - Seattle | Sun, Nov 15 | Delta Air Lines
        SEA 07:20
        1h 16m
        Direct
        PDX 08:36
        Seattle - Portland | Sat, Nov 21 | Delta Air Lines
        US$ 111
        33% off
        US$ 165 US$ 111
      • PDX 15:34
        1h 14m
        Direct
        SEA 16:48
        Portland - Seattle | Tue, Nov 17 | Delta Air Lines
        SEA 07:20
        1h 16m
        Direct
        PDX 08:36
        Seattle - Portland | Sat, Nov 21 | Delta Air Lines
        US$ 111
        33% off
        US$ 165 US$ 111
      • PDX 17:49
        1h 16m
        Direct
        SEA 19:05
        Portland - Seattle | Sat, Oct 31 | Delta Air Lines
        SEA 07:32
        1h 14m
        Direct
        PDX 08:46
        Seattle - Portland | Sat, Nov 7 | Delta Air Lines
        US$ 112
        32% off
        US$ 165 US$ 112
      • PDX 20:44
        1h 16m
        Direct
        SEA 22:00
        Portland - Seattle | Sun, Nov 1 | Delta Air Lines
        SEA 07:32
        1h 14m
        Direct
        PDX 08:46
        Seattle - Portland | Sun, Nov 8 | Delta Air Lines
        US$ 117
        28% off
        US$ 165 US$ 117
      • PDX 13:00
        17h 25m
        1 stop
        SEA 14:00
        Portland - Seattle | Sat, Sep 26 | Normal Airline
        SEA 15:00
        6h
        Direct
        PDX 16:00
        Seattle - Portland | Mon, Sep 28 | Normal Airline
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      • Cheapest nonstop
        PDX 14:30
        1h 5m
        Direct
        SEA 15:35
        Portland - Seattle | Sat, Nov 7 | Alaska Airlines
        US$ 84 US$ 126
        33% off
        33% off
        US$ 126 US$ 84
      • PDX 08:09
        1h 1m
        Direct
        SEA 09:10
        Portland - Seattle | Wed, Oct 14 | Alaska Airlines
        US$ 85 US$ 126
        33% off
        33% off
        US$ 126 US$ 85
      • PDX 09:31
        1h 8m
        Direct
        SEA 10:39
        Portland - Seattle | Sun, Oct 11 | Alaska Airlines
        US$ 85 US$ 126
        33% off
        33% off
        US$ 126 US$ 85
      • PDX 08:09
        1h 1m
        Direct
        SEA 09:10
        Portland - Seattle | Wed, Oct 21 | Alaska Airlines
        US$ 85
        33% off
        US$ 126 US$ 85
      • PDX 07:10
        1h 19m
        Direct
        SEA 08:29
        Portland - Seattle | Wed, Oct 14 | Delta Air Lines
        US$ 87
        31% off
        US$ 126 US$ 87
      • PDX 15:48
        1h 1m
        Direct
        SEA 16:49
        Portland - Seattle | Sat, Oct 24 | Alaska Airlines
        US$ 87
        31% off
        US$ 126 US$ 87
      • PDX 09:31
        1h 8m
        Direct
        SEA 10:39
        Portland - Seattle | Sat, Oct 17 | Alaska Airlines
        US$ 88
        30% off
        US$ 126 US$ 88
      • PDX 17:49
        1h 16m
        Direct
        SEA 19:05
        Portland - Seattle | Sat, Nov 7 | Delta Air Lines
        US$ 88
        30% off
        US$ 126 US$ 88
      • PDX 20:44
        1h 16m
        Direct
        SEA 22:00
        Portland - Seattle | Tue, Oct 20 | Delta Air Lines
        US$ 89
        28% off
        US$ 126 US$ 89
      • PDX 17:49
        1h 16m
        Direct
        SEA 19:05
        Portland - Seattle | Wed, Oct 21 | Delta Air Lines
        US$ 89
        28% off
        US$ 126 US$ 89
      • PDX 20:44
        1h 21m
        Direct
        SEA 22:05
        Portland - Seattle | Sun, Oct 11 | Delta Air Lines
        US$ 89
        28% off
        US$ 126 US$ 89
      • PDX 20:44
        1h 21m
        Direct
        SEA 22:05
        Portland - Seattle | Mon, Oct 12 | Delta Air Lines
        US$ 89
        28% off
        US$ 126 US$ 89
      • PDX 13:00
        17h 25m
        1 stop
        SEA 14:00
        Portland - Seattle | Sat, Sep 26 | Normal Airline
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Flight fares from Portland International Airport to Seattle-Tacoma International Airport are based on the average fares across airlines for the next three months, based on Trip.com’s latest data.

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

What is the cheapest month to fly from Portland International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Portland International Airport to Seattle-Tacoma International Airport for each month in the Trip.com database.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Portland International Airport to Seattle-Tacoma International Airport, the best time to buy is in September, with an average price of US$ 105. You’ll want to avoid August, when the average price can reach as high as US$ 228.

US$ 228
US$ 167
US$ 105
US$ 44
  • US$ 105
    Sep
  • US$ 119
    Oct
  • US$ 190
    Nov
  • US$ 154
    Dec
  • US$ 105
    Jan
  • US$ 126
    Feb
  • US$ 221
    Mar
  • US$ 187
    Apr
  • US$ 168
    May
  • US$ 206
    Jun
  • US$ 178
    Jul
  • US$ 228
    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 past 12 months and shows the average ticket prices from Portland International Airport to Seattle-Tacoma 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 Portland International Airport to Seattle-Tacoma International Airport is Sunday, with average fares typically lower than other days. You’ll want to avoid flying on Saturday, as ticket prices are usually the highest that day.

US$ 218
US$ 179
US$ 140
US$ 101
    Cheapest
  • US$ 186
    Mon
  • US$ 157
    Tue
  • US$ 165
    Wed
  • US$ 188
    Thu
  • US$ 182
    Fri
  • US$ 218
    Sat
  • US$ 140
    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 US$ 87) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From US$ 87
Delta Air Lines
From US$ 89
Hahn Air
From US$ 148
Frontier Airlines
From US$ 181
United Airlines
From US$ 188
Air Canada
From US$ 273
American Airlines
From US$ 456

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

    21:32

    PDX

    1h 7m

    22:39

    SEA

    S M T W T F S
    Search

  2. DL3918

    Portland International Airport

    17:49

    PDX

    1h 15m

    19:04

    SEA

    S M T W T F S
    Search

  3. DL3818

    Portland International Airport

    11:20

    PDX

    1h 17m

    12:37

    SEA

    S M T W T F S
    Search

  4. AS236

    Portland International Airport

    14:46

    PDX

    1h 53m

    Direct

    16:39

    SFO

    S M T W T F S
    Search

  5. AS1340

    San Francisco International Airport

    16:51

    SFO

    2h 16m

    Direct

    19:07

    SEA

    S M T W T F S

  6. AS2283

    Portland International Airport

    14:45

    PDX

    1h 48m

    Direct

    16:33

    OAK

    S M T W T F S
    Search

  7. AS1359

    Oakland San Francisco Bay Airport

    19:53

    OAK

    2h 7m

    Direct

    22:00

    SEA

    S M T W T F S

  8. AS526

    Portland International Airport

    07:18

    PDX

    2h 5m

    Direct

    09:23

    SFO

    S M T W T F S
    Search

  9. AS656

    San Francisco International Airport

    13:51

    SFO

    2h 13m

    Direct

    16:04

    SEA

    S M T W T - S

  10. AS2190

    Portland International Airport

    08:14

    PDX

    56m

    09:10

    SEA

    S M T W T F S
    Search
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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 distance 207.68km
Cheapest one-way ticket price US$ 84
Cheapest return ticket price US$ 99

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 23:18, 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 Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around US$ 227 in October, the most expensive month to book this route.
  • The earliest flight departs from Portland International Airport (PDX) at 05:15 and arrives in Seattle-Tacoma International Airport (SEA) at 06:08.
  • The latest flight departs from Portland International Airport (PDX) at 21:59 and arrives in Seattle-Tacoma International Airport (SEA) at 22:59.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • 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 US$ 84, and round-trip fares start from US$ 99. The current lowest fare is a Alaska Airlines flight departing on Sat, Nov 7; 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 US$ 242. 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 US$ 84. 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 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.

Most popular destination

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, regulatory fees, etc) with all fees confirmed before payment. Fees for baggage, meals, Wi-Fi, 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.