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King County (Boeing Field) International Airport to Portland International Airport flight

Explore the cheapest one-way and round-trip flights from King County (Boeing Field) International Airport to Portland International Airport over the next 90 days, with one-way fares from US$166 and round-trip from US$258. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        BFI 05:25
        50m
        Direct
        PDX 06:15
        Seattle - Portland | Sun, Sep 27 | Air Excursion
        PDX 16:05
        50m
        Direct
        BFI 16:55
        Portland - Seattle | Tue, Sep 29 | Air Excursion
        US$258 US$338
        24% off
        24% off
        US$338 US$258
      • BFI 20:05
        50m
        Direct
        PDX 20:55
        Seattle - Portland | Sat, Sep 26 | Air Excursion
        PDX 21:25
        50m
        Direct
        BFI 22:15
        Portland - Seattle | Mon, Sep 28 | Air Excursion
        US$260 US$338
        23% off
        23% off
        US$338 US$260
      • BFI 20:05
        50m
        Direct
        PDX 20:55
        Seattle - Portland | Mon, Oct 5 | Air Excursion
        PDX 16:05
        50m
        Direct
        BFI 16:55
        Portland - Seattle | Fri, Oct 9 | Air Excursion
        US$263 US$338
        22% off
        22% off
        US$338 US$263
      • SEA 13:00
        17h 25m
        1 stop
        PDX 14:00
        Seattle - Portland | Wed, Sep 23 | Normal Airline
        PDX 15:00
        6h
        Direct
        SEA 16:00
        Portland - Seattle | Fri, Sep 25 | Normal Airline
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      • Cheapest nonstop
        BFI 20:05
        50m
        Direct
        PDX 20:55
        Seattle - Portland | Fri, Oct 30 | Air Excursion
        US$166 US$252
        34% off
        34% off
        US$252 US$166
      • BFI 20:05
        50m
        Direct
        PDX 20:55
        Seattle - Portland | Mon, Sep 28 | Air Excursion
        US$193 US$252
        23% off
        23% off
        US$252 US$193
      • BFI 05:25
        50m
        Direct
        PDX 06:15
        Seattle - Portland | Sat, Nov 14 | Air Excursion
        US$196 US$252
        22% off
        22% off
        US$252 US$196
      • SEA 13:00
        17h 25m
        1 stop
        PDX 14:00
        Seattle - Portland | Wed, Sep 23 | Normal Airline
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Displayed flight fares from King County (Boeing Field) International Airport to Portland International Airport are based on average prices across airlines for the next 3 months according to the latest Trip.com data.

Which airline offers the cheapest flights from King County (Boeing Field) International Airport to Portland International Airport?

The cheapest airline flying from King County (Boeing Field) International Airport to Portland International Airport is Air Excursion (from US$296) among 1 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Air Excursion
From US$296

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What is the flight schedule from King County (Boeing Field) International 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. X43114

    King County (Boeing Field) International Airport

    19:45

    BFI

    50m

    20:35

    PDX

    S M T W T - -
    Search
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About King County (Boeing Field) International Airport and Portland International Airport

Learn about King County (Boeing Field) International Airport (BFI) and Portland International Airport (PDX) — including location, terminals, transportation, and travel tips.

Flight distance217.99km
Cheapest one-way ticket priceUS$166
Cheapest return ticket priceUS$258

FAQs for King County (Boeing Field) International Airport to Portland International Airport Flights

  • How many daily flights are there from King County (Boeing Field) International Airport (BFI) to Portland International Airport (PDX)?

    There are around 4 daily flights from King County (Boeing Field) International Airport (BFI) to Portland International Airport (PDX).
  • The route from King County (Boeing Field) International Airport (BFI) to Portland International Airport (PDX) is quite popular. Without considering departure times or holidays, tickets cost around US$248 in August, the most expensive month to book this route.
  • Air Excursion, LLC is a very popular airline operating an average of 16 flights per month.
  • One-way flights from King County (Boeing Field) International Airport to Portland International Airport currently start from US$166, and round-trip fares start from US$258. The current lowest fare is a Air Excursion flight departing on Fri, Oct 30; prices may vary depending on availability.
  • Yes. Air Excursion and LLC operate direct flights from King County (Boeing Field) International Airport to Portland International Airport, with an average flight time of 50 minutes, and around 0 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 King County (Boeing Field) International Airport to Portland International Airport is US$160. Prices may vary depending on the departure date, airline, and availability.
  • Enter King County (Boeing Field) International 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.

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Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check 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 according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.