฿3,665 Cheap Korean Air flights from Seoul to Jeju (GMP→CJU)

View ฿3,665 flight on Wed, 20 May 2026Opens in a new window

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Korean Air flights from Seoul to Jeju (GMP→CJU)

Prices were available within the past 7 days and start at ฿3,665 for one-way flights and ฿7,325 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Sat, 30 May - Tue, 2 Jun
GMP
Seoul
CJU
Jeju City
฿7,325 Return, found 1 hour ago
฿7,325
Return
found 1 hour ago
Select Korean Air flight, departing Sat, 30 May from Seoul to Jeju City, returning Tue, 2 Jun, priced at ฿7,325 found 1 hour ago

Alternative airports near Jeju City

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Jeju Intl. CJU. Cheapest and Closest option available. Average driving time to city centre is 4 minutes. Flights from ฿2,707
CJU
Jeju Intl.
CheapestClosest
Average driving time to city centre4 min
Flights from ฿2,707

Find the cheapest month to fly from Seoul (GMP) to Jeju City (CJU)

November is typically the cheapest month to fly

From ฿829 - ฿2,768 per traveller.

Frequently asked questions

How much is a Korean Air flight from Gimpo Intl. Airport (GMP) to Jeju Intl. Airport (CJU)?
Scoring cheap one-way Korean Air flights from GMP to CJU from ฿3,665 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from ฿7,325 for your next exciting holiday.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from GMP to CJU with Korean Air?
Korean Air flights to Jeju City tend to be cheaper in the off-peak months of January and February. Whether you're searching for a round-trip or one-way ticket, you could score a better deal then.
Does Korean Air fly nonstop from Gimpo Intl. Airport (GMP) to Jeju Intl. Airport (CJU)?
Skip the layovers and fly from Gimpo Intl. Airport (GMP) to Jeju Intl. Airport (CJU) on any of Korean Air's 153 direct weekly flights. Use our "Nonstop" and "Airline" filters to find the Korean Air flight that'll take you to CJU at your preferred time.
How long does it take to fly from GMP to CJU with Korean Air?
Leave Gimpo Intl. Airport (GMP) for Jeju Intl. Airport (CJU) on a direct Korean Air flight, and you'll be in the sky for about 1h 11m.
Which day of the week has the most Korean Air flights from Gimpo Intl. Airport (GMP) to Jeju Intl. Airport (CJU)?
Korean Air operates the most flights from Gimpo Intl. Airport (GMP) to Jeju Intl. Airport (CJU) on Friday. With up to 24 daily departures, you'll get the most flexibility and choice on this day.
What airports does Korean Air fly into in Jeju City?
Board a Korean Air flight from Gimpo Intl. Airport (GMP) to Jeju City, and you're most likely to touch down at Jeju Intl. Airport (CJU). This is the airline's primary hub in this city.
What kind of luggage can I take on a Korean Air flight from Gimpo Intl. Airport (GMP) to Jeju Intl. Airport (CJU)?
Korean Air allows you to bring 2 checked-in bags weighing up to 23 kgs with maximum dimensions of 157 centimetres on standard economy flights from GMP to CJU. You can also take 1 cabin bag with you in the cabin. This hand luggage must not exceed 53 centimetres x 38 centimetres x 18 centimetres and be no heavier than 18 kgs. Baggage policies can vary depending on your cabin class and fare type, so check your booking or Korean Air's website to avoid any extra fees at the airport.
What type of plane does Korean Air fly from Gimpo Intl. Airport (GMP) to Jeju Intl. Airport (CJU)?
You'll likely be seated on a Boeing 737-900 or an Airbus A321neo when flying Korean Air from Gimpo Intl. Airport (GMP) to Jeju Intl. Airport (CJU). However, keep in mind that a different aircraft may be used depending on operational requirements.
Can I change or cancel my Korean Air flight from Gimpo Intl. Airport (GMP) to Jeju Intl. Airport (CJU)?
Depending on the type of fare you purchased, a fee is typically charged if you cancel or change your flight more than 24 hours after it's confirmed. To secure plane tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when you look for flights. For more details on modifying or cancelling your reservation, visit "Trips," select your flight and tick "Manage Booking."

Travel information

Origin airport
Gimpo Intl.
Destination airport
Jeju Intl.
Airlines serving
Asiana Airlines, Jeju Air, Jeju Air with Bag, Korean Air, T'way Air with baggage
Popular airline
Jeju Air
Distance
448 km
Average flight time
1 hour 15 mins
*Available to Expedia members.