฿3,835 Cheap Korean Air flights from Seoul to Jeju (GMP→CJU)

View ฿3,835 flight on Thu, 13 Nov 2025Opens in a new window
  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at ฿3,835 for one-way flights and ฿7,670 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Wed, 24 Dec - Thu, 25 Dec
GMP
Seoul
CJU
Jeju City
฿7,670 Return, found 2 hours ago
฿7,670
Return
found 2 hours ago
Select Korean Air flight, departing Wed, 24 Dec from Seoul to Jeju City, returning Thu, 25 Dec, priced at ฿7,670 found 2 hours ago

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 ฿3,835 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from ฿7,670 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 with Bag
Distance
448 km
Average flight time
1 hour 14 mins

Explore a world of travel with Expedia

*Available to Expedia members.