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Flights from Portland to Seoul

Explore the cheapest one-way and round-trip flights from Portland to Seoul over the next 90 days, with one-way fares from US$721 and round-trip from US$1,446. Based on Trip.com's latest 7-day flight data.

      • PWM 09:00
        41h 45m
        1 stop
        ICN 15:45
        Portland - Seoul | Tue, Sep 29 | American Airlines
        ICN 17:50
        37h 57m
        1 stop
        PWM 18:47
        Seoul - Portland | Tue, Oct 6 | American Airlines
        US$1,446 US$2,783
        48% off
        48% off
        US$2,783 US$1,446
      • PWM 06:00
        20h 55m
        1 stop
        ICN 15:55
        Portland - Seoul | Thu, Sep 24 | Delta Air Lines
        ICN 16:25
        20h 3m
        1 stop
        PWM 23:28
        Seoul - Portland | Wed, Sep 30 | Korean Air
        US$1,593 US$2,783
        43% off
        43% off
        US$2,783 US$1,593
      • PWM 14:10
        36h 45m
        1 stop
        ICN 15:55
        Portland - Seoul | Thu, Sep 24 | Korean Air
        ICN 16:25
        20h 3m
        1 stop
        PWM 23:28
        Seoul - Portland | Wed, Sep 30 | Korean Air
        US$1,594 US$2,783
        43% off
        43% off
        US$2,783 US$1,594
      • PWM 06:01
        22h 49m
        1 stop
        ICN 17:50
        Portland - Seoul | Tue, Oct 6 | Korean Air
        ICN 10:35
        26h
        1 stop
        PWM 23:35
        Seoul - Portland | Tue, Oct 13 | Korean Air
        US$1,986
        28% off
        US$2,783 US$1,986
      • PWM 06:00
        20h 55m
        1 stop
        ICN 15:55
        Portland - Seoul | Sat, Sep 26 | Korean Air
        ICN 10:15
        18h 40m
        1 stop
        PWM 15:55
        Seoul - Portland | Fri, Oct 2 | Korean Air
        US$1,998
        28% off
        US$2,783 US$1,998
      • PWM 06:01
        22h 49m
        1 stop
        ICN 17:50
        Portland - Seoul | Fri, Oct 16 | Korean Air
        ICN 16:25
        20h 10m
        1 stop
        PWM 23:35
        Seoul - Portland | Fri, Oct 23 | Korean Air
        US$2,057
        26% off
        US$2,783 US$2,057
      • PWM 07:00
        20h 50m
        1 stop
        ICN 16:50
        Portland - Seoul | Tue, Oct 6 | American Airlines
        ICN 10:00
        27h 10m
        1 stop
        PWM 00:10
        Seoul - Portland | Tue, Oct 13 | Korean Air
        US$2,090
        25% off
        US$2,783 US$2,090
      • PWM 06:01
        22h 49m
        1 stop
        ICN 17:50
        Portland - Seoul | Fri, Oct 16 | Delta Air Lines
        ICN 16:25
        20h 10m
        1 stop
        PWM 23:35
        Seoul - Portland | Fri, Oct 23 | Korean Air
        US$2,144
        23% off
        US$2,783 US$2,144
      • PWM 06:02
        22h 48m
        1 stop
        ICN 17:50
        Portland - Seoul | Wed, Sep 23 | Delta Air Lines
        ICN 08:45
        27h 43m
        1 stop
        PWM 23:28
        Seoul - Portland | Wed, Sep 30 | Korean Air
        US$2,162
        22% off
        US$2,783 US$2,162
      • PWM 07:00
        20h 50m
        1 stop
        ICN 16:50
        Portland - Seoul | Fri, Oct 16 | American Airlines
        ICN 16:25
        20h 10m
        1 stop
        PWM 23:35
        Seoul - Portland | Fri, Oct 23 | Korean Air
        US$2,198
        21% off
        US$2,783 US$2,198
      • PWM 13:00
        17h 25m
        1 stop
        SEL 14:00
        Portland - Seoul | Fri, Sep 11 | Normal Airline
        SEL 15:00
        6h
        Nonstop
        PWM 16:00
        Seoul - Portland | Sun, Sep 13 | Normal Airline
        More cheap flights
        More cheap flights
      • PWM 06:00
        22h 50m
        1 stop
        ICN 17:50
        Portland - Seoul | Tue, Sep 29 | Korean Air
        US$721 US$927
        22% off
        22% off
        US$927 US$721
      • PWM 14:10
        24h 50m
        1 stop
        ICN 04:00
        Portland - Seoul | Wed, Oct 7 | Korean Air
        US$721 US$927
        22% off
        22% off
        US$927 US$721
      • PWM 06:02
        22h 48m
        1 stop
        ICN 17:50
        Portland - Seoul | Sun, Oct 4 | Korean Air
        US$722 US$927
        22% off
        22% off
        US$927 US$722
      • PWM 06:00
        20h 55m
        1 stop
        ICN 15:55
        Portland - Seoul | Mon, Oct 5 | Korean Air
        US$722
        22% off
        US$927 US$722
      • PWM 06:02
        22h 48m
        1 stop
        ICN 17:50
        Portland - Seoul | Tue, Oct 6 | Korean Air
        US$722
        22% off
        US$927 US$722
      • PWM 06:00
        22h 50m
        1 stop
        ICN 17:50
        Portland - Seoul | Wed, Sep 30 | Korean Air
        US$722
        22% off
        US$927 US$722
      • PWM 06:02
        22h 48m
        1 stop
        ICN 17:50
        Portland - Seoul | Tue, Oct 6 | Delta Air Lines
        US$722
        22% off
        US$927 US$722
      • PWM 06:00
        22h 50m
        1 stop
        ICN 17:50
        Portland - Seoul | Wed, Sep 30 | Delta Air Lines
        US$723
        22% off
        US$927 US$723
      • PWM 06:01
        22h 49m
        1 stop
        ICN 17:50
        Portland - Seoul | Mon, Oct 26 | Korean Air
        US$727
        22% off
        US$927 US$727
      • PWM 06:00
        22h 50m
        1 stop
        ICN 17:50
        Portland - Seoul | Tue, Oct 6 | Jetblue Airways
        US$732
        21% off
        US$927 US$732
      • PWM 13:00
        17h 25m
        1 stop
        SEL 14:00
        Portland - Seoul | Fri, Sep 11 | Normal Airline
        More cheap flights
        More cheap flights

Which airlines are the most popular for Portland to Seoul flights?

You can choose from 1 airlines that fly from Portland to Seoul, including Korean Air, Korean Air has lowest fares on this route.
Korean Air logo Korean Air
Airlines are determined based on actual purchased flight tickets from Portland to Seoul according to previous 12 months data from Trip.com.

Portland to Seoul Flight Information

The distance between Portland and Seoul is about 10,824.21 km. Based on Trip.com's latest data, travel demand is highest in January. The off-season for travel is September.

Cheapest one-way flight price US$721
Cheapest return ticket price US$1,446
Cheapest month September
Peak season for travel January
Flight distance 10,824.21 km
Popular airline Korean Air
Flight statistics for the Portland–Seoul route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Portland to Seoul (PWM-SEL)?

    Based on Trip.com data, Korean Air offers one-way fares as low as US$721 on Cheapest nonstop routes (e.g. PWM to ICN on Tue, Sep 29), while American Airlines offers Cheapest nonstop round-trips from US$1,446 departing on Tue, Sep 29 and returning on Tue, Oct 6.
  • At the moment, several airlines serve connecting flights from Portland to Seoul, including: Korean Air Selected airlines are based on historical data collected from flight bookings made by users 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 Portland to Seoul 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.
  • To find best deals on flights from Portland to Seoul, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Sep 29, with one-way flights priced at just US$721.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Korean Air.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seoul travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Portland to Seoul is September, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Portland to Seoul on September 24, 2026 with Korean Air, with prices starting at US$1,420.
  • You can land at any one of the following hubs in Seoul: Gimpo International Airport (GMP), and Incheon International Airport (ICN). Flying from Portland International Jetport to Incheon International Airport (PWM-ICN) is by far the most common option on this route.
  • The time difference between Seoul and Portland is 14h.
  • 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Portland to Seoul is US$970. Fares vary by travel date, airline and availability.
  • Enter Portland and Seoul, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

Explore More Popular Flights

Note: Prices shown on this page are the estimated lowest 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 you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed 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.