$120 Cheap Korean Air flights Jeju (CJU) to Seoul (GMP)

View $120 flight on Tue, Sep 2, 2025Opens in a new window

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$120 Cheap Korean Air flights Jeju (CJU) to Seoul (GMP)

Prices were available within the past 7 days and start at $120 for one-way flights and $241 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Mon, Nov 3 - Mon, Nov 10
CJU
Jeju City
GMP
Seoul
$241 Roundtrip, just found
$241
Roundtrip
just found
Select Korean Air flight, departing Mon, Nov 3 from Jeju City to Seoul, returning Mon, Nov 10, priced at $241 just found
Korean Air
Sat, Oct 4 - Sat, Oct 11
CJU
Jeju City
GMP
Seoul
$242 Roundtrip, found 2 days ago
$242
Roundtrip
found 2 days ago
Select Korean Air flight, departing Sat, Oct 4 from Jeju City to Seoul, returning Sat, Oct 11, priced at $242 found 2 days ago
Korean Air
Tue, Oct 28 - Thu, Oct 30
CJU
Jeju City
GMP
Seoul
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select Korean Air flight, departing Tue, Oct 28 from Jeju City to Seoul, returning Thu, Oct 30, priced at $243 found 3 days ago
Korean Air
Sat, Sep 6 - Sat, Sep 13
CJU
Jeju City
GMP
Seoul
$246 Roundtrip, just found
$246
Roundtrip
just found
Select Korean Air flight, departing Sat, Sep 6 from Jeju City to Seoul, returning Sat, Sep 13, priced at $246 just found
Korean Air
Thu, Sep 11 - Mon, Sep 15
CJU
Jeju City
GMP
Seoul
$248 Roundtrip, found 2 days ago
$248
Roundtrip
found 2 days ago
Select Korean Air flight, departing Thu, Sep 11 from Jeju City to Seoul, returning Mon, Sep 15, priced at $248 found 2 days ago
Flights from Jeju (CJU) to Seoul (GMP)
Origin airport
Jeju Intl.
Destination airport
Gimpo Intl.
Airlines serving
Asiana Airlines, Korean Air
Popular airline
Asiana Airlines
Distance
280 mi
Average flight time
1 hour 12 mins

Frequently asked questions

How much is a Korean Air flight from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
Scoring cheap one-way Korean Air flights from CJU to GMP from $120 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $241 for your next getaway.**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 CJU to GMP with Korean Air?
Korean Air flights to Seoul are generally cheaper in the low-season months of January and February. Whether you're in search of a one-way or round-trip ticket, you could score a better deal then.
What is the cheapest time to book flights from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) with Korean Air?
For cheap Korean Air fares from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the price you pay. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Korean Air fly nonstop from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
Skip the layovers and fly from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) on one of Korean Air's 153 direct weekly flights. Use our "Nonstop" and "Airline" filters to find the Korean Air flight that'll arrive at GMP at your preferred time.
How long does it take to fly from CJU to GMP with Korean Air?
It takes approximately 1h 10m to fly nonstop from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) with Korean Air.
Which day of the week has the most Korean Air flights from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
Korean Air has the most flights from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) on Friday. With up to 24 daily departures, you'll get the most options and flexibility on this day.
What is the earliest Korean Air flight from CJU to GMP?
The first flight from CJU to GMP with Korean Air leaves at 7:00AM UTC+9. You'll touch down at 8:10AM UTC+9. The last Korean Air flight of the day takes off at 9:10PM UTC+9 and arrives at 10:20PM UTC+9. With approximately 20% fewer cancellations for departures before noon, starting your travel day early is typically the smartest choice.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Korean Air fly into in Seoul?
Jump on a Korean Air flight from Jeju Intl. Airport (CJU) to Seoul, and you'll most likely come in to Gimpo Intl. Airport (GMP). This is the airline's main hub in this destination.
What kind of luggage can I take on a Korean Air flight from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
For checked luggage, passengers can bring 2 checked-in bags weighing up to 50 lb with dimensions not exceeding 62 inches. You can also travel with 1 cabin bag in the cabin when flying standard economy from CJU to GMP with Korean Air. This carry-on should weigh less than 39 lb and be no larger than 21 inches x 15 inches x 7 inches. Exceeding these restrictions can mean extra charges, so check Korean Air's baggage allowance policies before you pack.
Why fly with Korean Air from CJU to GMP?
With a 5-star airline rating, Korean Air is a favorite of many passengers journeying from CJU to GMP. Plus, if you're a Korean Airlines Skypass and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Korean Air fly from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
You'll likely board a Boeing 737-900 or an Airbus A321neo when flying Korean Air from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP). However, keep in mind that a different plane may be used depending on operational demands.
Can I change or cancel my Korean Air flight from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
Depending on your fare type, a fee typically applies if you modify or cancel your booking more than 24 hours after it's been confirmed. To find flexible fares, select our "No cancel fee" or "Changes included" filter when you search for flights. For more details on changing or canceling your reservation, go to "Trips," select your flight and click on "Manage Booking."

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