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Flights from Seoul to Portland

Cheapest airlines flights from Seoul to Portland

Fly from Seoul to Portland with 4 carriers, including Korean Air, Air Canada, and Alaska Airlines. Alaska Airlines offers the cheapest flights from Seoul to Portland.
Korean Air logo Korean Air Air Canada logo Air Canada Alaska Airlines logo Alaska Airlines Hawaiian Airlines logo Hawaiian Airlines

Find Seoul to Portland flight deals for the next 3 months. One way flights from US$301, round trip flights from US$533.

      • ICN 20:35
        20h 34m
        1 stop
        PDX 00:09
        Seoul - Portland | Mon, Nov 17 | Alaska Airlines
        PDX 22:30
        27h 5m
        1 stop
        ICN 18:35
        Portland - Seoul | Fri, Nov 21 | Alaska Airlines
        US$533 US$719
        26% OFF
        26% OFF
        US$719 US$533
      • ICN 18:55
        31h 20m
        1 stop
        PDX 09:15
        Seoul - Portland | Fri, Nov 21 | Air Canada
        PDX 15:15
        32h 55m
        1 stop
        ICN 17:10
        Portland - Seoul | Thu, Nov 27 | Air Canada
        US$564 US$719
        21% OFF
        21% OFF
        US$719 US$564
      • ICN 18:55
        31h 20m
        1 stop
        PDX 09:15
        Seoul - Portland | Thu, Dec 4 | Air Canada
        PDX 15:15
        32h 55m
        1 stop
        ICN 17:10
        Portland - Seoul | Sun, Dec 7 | Air Canada
        US$570 US$719
        21% OFF
        21% OFF
        US$719 US$570
      • ICN 18:55
        31h 20m
        1 stop
        PDX 09:15
        Seoul - Portland | Sun, Dec 28 | Air Canada
        PDX 09:50
        14h 20m
        1 stop
        ICN 17:10
        Portland - Seoul | Fri, Jan 2 | Air Canada
        US$589
        18% OFF
        US$719 US$589
      • SEL 13:00
        17h 25m
        1 stop
        PDX Invalid Date
        Seoul - Portland | Sun, Nov 16 | Normal Airline
        PDX 15:00
        6h
        Nonstop
        SEL 16:00
        Portland - Seoul | Tue, Nov 18 | Normal Airline
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Seoul to Portland Flight Information

The distance between Seoul and Portland is approximately 8,457.43 km. The most popular month to fly to Portland is January. The off-season for travel is October.

Cheapest one-way flight priceUS$301
Cheapest return ticket priceUS$533
Cheapest monthOctober
Peak season for travelJanuary
Flight distance8,457.43 km
Popular airlineKorean Air

When is the cheapest time to book flights from Seoul to Portland?

Best time for cheap flights from Seoul to Portland are between Dec 7 and Dec 14 with one way fares from US$300

Cheapest flights
From price
Search
  • 916
  • 1623
  • 2330

  • Dec

    307
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • Which airlines offer direct flights from Seoul to Portland?

    At the moment, you can catch a nonstop flight from Seoul to Portland with the following airlines, including: United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seoul to Portland is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • The cheapest months to fly from Seoul to Portland is October, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Seoul to Portland on November 20, 2025 with Alaska Airlines, with prices starting at US$334.
  • You can land at any one of the following hubs in Portland, with Incheon International Airport to Portland International Airport (ICN-PDX) is by far the most common option on this route: Hillsboro Airport (HIO) Portland International Airport (PDX).
  • The time difference between Portland and Seoul is 17h.
  • Tickets can only be changed or canceled if permitted by airline policy. 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. However, 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.

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