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Flights from Seattle to Jeju

Find cheap airlines flights from Seattle to Jeju

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

Find flight deals from Seattle to Jeju for the next 3 months. Book one way flights from $469 or round trip flights from $900.

      • SEA 12:10 AM
        26h 35m
        1 stop
        CJU 7:45 PM
        Seattle - Jeju | Sat, Feb 28 | Asiana Airlines
        CJU 7:10 AM
        23h 45m
        1 stop
        SEA 1:55 PM
        Jeju - Seattle | Wed, Mar 4 | Asiana Airlines
        $900 $1,180
        24% off
        24% off
        $1,180 $900
      • SEA 11:30 AM
        28h 5m
        1 stop
        CJU 8:35 AM
        Seattle - Jeju | Tue, Mar 17 | Delta Air Lines
        CJU 4:05 PM
        14h 15m
        1 stop
        SEA 2:20 PM
        Jeju - Seattle | Tue, Mar 24 | Korean Air
        $948 $1,180
        20% off
        20% off
        $1,180 $948
      • SEA 12:10 AM
        27h 50m
        1 stop
        CJU 8:00 PM
        Seattle - Jeju | Sat, Mar 28 | Asiana Airlines
        CJU 9:10 AM
        21h 45m
        1 stop
        SEA 2:55 PM
        Jeju - Seattle | Wed, Apr 1 | Air Busan
        $989 $1,180
        16% off
        16% off
        $1,180 $989
      • SEA 12:10 AM
        25h 55m
        1 stop
        CJU 6:05 PM
        Seattle - Jeju | Sun, Mar 22 | Asiana Airlines
        CJU 10:25 AM
        20h 30m
        1 stop
        SEA 2:55 PM
        Jeju - Seattle | Wed, Mar 25 | Eastar Jet
        $991
        16% off
        $1,180 $991
      • SEA 12:10 AM
        26h 30m
        1 stop
        CJU 6:40 PM
        Seattle - Jeju | Thu, Apr 2 | Asiana Airlines
        CJU 7:55 AM
        23h
        1 stop
        SEA 2:55 PM
        Jeju - Seattle | Thu, Apr 9 | T'Way Air
        $994
        16% off
        $1,180 $994
      • SEA 12:00 PM
        18h 45m
        1 stop
        CJU 10:45 PM
        Seattle - Jeju | Sun, Mar 22 | Korean Air
        CJU 6:45 AM
        19h 15m
        1 stop
        SEA 10:00 AM
        Jeju - Seattle | Wed, Mar 25 | Asiana Airlines
        $996
        16% off
        $1,180 $996
      • SEA 11:25 AM
        34h 45m
        1 stop
        CJU 3:10 PM
        Seattle - Jeju | Sat, Feb 28 | Delta Air Lines
        CJU 9:10 PM
        33h 10m
        1 stop
        SEA 1:20 PM
        Jeju - Seattle | Wed, Mar 4 | Korean Air
        $1,001
        15% off
        $1,180 $1,001
      • SEA 11:00 AM
        34h 25m
        1 stop
        CJU 2:25 PM
        Seattle - Jeju | Sat, Feb 28 | Korean Air
        CJU 7:45 AM
        18h 15m
        1 stop
        SEA 9:00 AM
        Jeju - Seattle | Wed, Mar 4 | Korean Air
        $1,002
        15% off
        $1,180 $1,002
      • SEA 12:00 PM
        16h
        1 stop
        CJU 8:00 PM
        Seattle - Jeju | Fri, Mar 27 | Korean Air
        CJU 7:30 PM
        30h 30m
        1 stop
        SEA 10:00 AM
        Jeju - Seattle | Wed, Apr 1 | Korean Air
        $1,003
        15% off
        $1,180 $1,003
      • SEA 12:00 PM
        17h 35m
        1 stop
        CJU 9:35 PM
        Seattle - Jeju | Sat, Mar 28 | Korean Air
        CJU 12:00 PM
        14h
        1 stop
        SEA 10:00 AM
        Jeju - Seattle | Wed, Apr 1 | Korean Air
        $1,003
        15% off
        $1,180 $1,003
      • SEA 1:00 PM
        17h 25m
        1 stop
        CJU Invalid Date
        Seattle - Jeju | Thu, Feb 19 | Normal Airline
        CJU 3:00 PM
        6h
        Nonstop
        SEA 4:00 PM
        Jeju - Seattle | Sat, Feb 21 | Normal Airline
        Find more flights
        Find more flights
      • SEA 1:40 PM
        24h 40m
        1 stop
        CJU 7:20 AM
        Seattle - Jeju | Thu, Mar 12 | Hawaiian Airlines
        $469 $573
        18% off
        18% off
        $573 $469
      • SEA 12:10 AM
        21h 45m
        1 stop
        CJU 2:55 PM
        Seattle - Jeju | Tue, Mar 3 | Asiana Airlines
        $472 $573
        18% off
        18% off
        $573 $472
      • SEA 1:40 PM
        24h 40m
        1 stop
        CJU 7:20 AM
        Seattle - Jeju | Thu, Mar 12 | Alaska Airlines
        $472 $573
        18% off
        18% off
        $573 $472
      • SEA 1:40 PM
        25h 20m
        1 stop
        CJU 8:00 AM
        Seattle - Jeju | Tue, Feb 17 | Hawaiian Airlines
        $477
        17% off
        $573 $477
      • SEA 12:55 AM
        26h 50m
        1 stop
        CJU 7:45 PM
        Seattle - Jeju | Sun, Apr 12 | Asiana Airlines
        $479
        16% off
        $573 $479
      • SEA 1:40 PM
        25h 20m
        1 stop
        CJU 8:00 AM
        Seattle - Jeju | Tue, Feb 17 | Alaska Airlines
        $479
        16% off
        $573 $479
      • SEA 1:40 PM
        36h 40m
        1 stop
        CJU 7:20 PM
        Seattle - Jeju | Thu, Feb 19 | Hawaiian Airlines
        $479
        16% off
        $573 $479
      • SEA 1:40 PM
        36h 15m
        1 stop
        CJU 6:55 PM
        Seattle - Jeju | Thu, Feb 19 | Alaska Airlines
        $483
        16% off
        $573 $483
      • SEA 12:10 AM
        36h 55m
        1 stop
        CJU 6:05 AM
        Seattle - Jeju | Mon, Mar 16 | China Airlines
        $486
        15% off
        $573 $486
      • SEA 12:10 AM
        27h 45m
        1 stop
        CJU 7:55 PM
        Seattle - Jeju | Tue, Mar 24 | Asiana Airlines
        $487
        15% off
        $573 $487
      • SEA 1:00 PM
        17h 25m
        1 stop
        CJU Invalid Date
        Seattle - Jeju | Thu, Feb 19 | Normal Airline
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        Find more flights

Displayed flight fares from Seattle to Jeju are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Seattle to Jeju

The distance between Seattle and Jeju is approximately 8,707.24 km. Based on Trip.com's data travel demand peaks in July. The off-season for travel is November.

Cheapest one-way flight price$469
Cheapest round-trip ticket price$900
Off-season for travelNovember
Peak season for travelJuly
Flight distance8,707.24 km
Popular airlineSTARLUX Airlines
Flight statistics for the Seattle–Jeju route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Seattle to Jeju (SEA-CJU)?

    Based on Trip.com data, Hawaiian Airlines offers one-way fares as low as $469 on Cheapest nonstop routes (e.g. SEA to CJU on Thu, Mar 12), while Asiana Airlines offers Cheapest nonstop round-trips from $900 departing on Sat, Feb 28 and returning on Wed, Mar 4.
  • At the moment, you can catch a nonstop flight from Seattle to Jeju with the following airlines, including: STARLUX 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 Seattle to Jeju 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 Seattle to Jeju, 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 Thu, Mar 12, with one-way flights priced at just $469.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Hawaiian Airlines.
    · 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 Jeju travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Jeju is November, when demand for travel is lower.
  • After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Seattle to Jeju on February 28, 2026 with Hawaiian Airlines, with prices starting at $477.
  • You can land at any one of the following hubs in Jeju, with Seattle-Tacoma International Airport to Jeju International Airport (SEA-CJU) is by far the most common option on this route: Jeju International Airport (CJU).
  • The time difference between Jeju and Seattle 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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