$124 Cheap Flights from Jeju (CJU) to Seoul (GMP)

View $124 flight on Sun, Jul 20, 2025Opens in a new window

Popular airlines from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)

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Cheap Flights from Jeju to Seoul (CJU-GMP)

Prices were available within the past 7 days and start at $124 for one-way flights and $247 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Tue, Jun 24 - Fri, Aug 22
CJU
Jeju City
GMP
Seoul
$247 Roundtrip, found 15 hours ago
$247
Roundtrip
found 15 hours ago
Select Korean Air flight, departing Tue, Jun 24 from Jeju City to Seoul, returning Fri, Aug 22, priced at $247 found 15 hours ago
Korean Air
Wed, Sep 10 - Sat, Sep 13
CJU
Jeju City
GMP
Seoul
$248 Roundtrip, just found
$248
Roundtrip
just found
Select Korean Air flight, departing Wed, Sep 10 from Jeju City to Seoul, returning Sat, Sep 13, priced at $248 just found
Asiana Airlines
Tue, Jun 24 - Fri, Aug 22
CJU
Jeju City
GMP
Seoul
$252 Roundtrip, found 15 hours ago
$252
Roundtrip
found 15 hours ago
Select Asiana Airlines flight, departing Tue, Jun 24 from Jeju City to Seoul, returning Fri, Aug 22, priced at $252 found 15 hours ago
Asiana Airlines
Wed, Sep 10 - Sat, Sep 13
CJU
Jeju City
GMP
Seoul
$253 Roundtrip, just found
$253
Roundtrip
just found
Select Asiana Airlines flight, departing Wed, Sep 10 from Jeju City to Seoul, returning Sat, Sep 13, priced at $253 just found
Korean Air
Fri, Jul 11 - Mon, Jul 14
CJU
Jeju City
GMP
Seoul
$254 Roundtrip, found 1 day ago
$254
Roundtrip
found 1 day ago
Select Korean Air flight, departing Fri, Jul 11 from Jeju City to Seoul, returning Mon, Jul 14, priced at $254 found 1 day ago
Asiana Airlines
Fri, Jul 25 - Fri, Aug 1
CJU
Jeju City
GMP
Seoul
$256 Roundtrip, found 14 hours ago
$256
Roundtrip
found 14 hours ago
Select Asiana Airlines flight, departing Fri, Jul 25 from Jeju City to Seoul, returning Fri, Aug 1, priced at $256 found 14 hours ago
Asiana Airlines
Wed, Sep 10 - Sat, Sep 13
CJU
Jeju City
GMP
Seoul
$259 Roundtrip, just found
$259
Roundtrip
just found
Select Asiana Airlines flight, departing Wed, Sep 10 from Jeju City to Seoul, returning Sat, Sep 13, priced at $259 just found

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

March is typically the cheapest month to fly

From $26 - $241 per traveler.

Graph displaying average flight prices per month

Alternative airports near Seoul

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

Select flight to Gimpo Intl. GMP. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $246
GMP
Gimpo Intl.
CheapestClosest
Average driving time to city center20 min
Flights from $246
Flights from Jeju (CJU) to Seoul (GMP)
Origin airport
Jeju Intl.
Destination airport
Gimpo Intl.
Airlines serving
Asiana Airlines, Korean Air
Roundtrip price
$247
Distance
280 mi
Average flight time
1 hour 12 mins

Jeju to Seoul Flights

The cheapest times to fly from Jeju to Seoul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Jeju to Seoul are during the month of June. You can find some of the cheapest flights from Jeju to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Jeju to Seoul

Sunday is one of the best days to book for cheap flights from Jeju to Seoul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Jeju to Seoul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Jeju to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $124 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Jeju to Seoul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Jeju to Seoul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) cost?
Cheap return flights from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) start from $246. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Korean Air flight leaving CJU on July 12 2025 and touching down at GMP. The price was last updated on June 17 2025 and has not changed since.
What is the cheapest month to fly from CJU to GMP?
The cheapest flights from CJU to GMP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
You can catch a nonstop flight from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) with 8 carriers, including:
  • Korean Air
  • Asiana Airlines
  • Jeju Air
  • EASTAR JET
  • TWay Air

What is the cheapest airline that flies from CJU to GMP?
Take off from CJU to GMP with Korean Air. This airline currently has the cheapest one-way ticket on this route, starting from $123. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CJU on September 12 2025. Prices were last updated on June 17 2025 and have not changed since.
How many flights per day from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
Each day on average, 105 nonstop flights take off from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP). Choose the departure date that best suits your plans.
What are the most popular departure times for flights from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
More travelers fly between CJU and GMP at 8 PM than at any other point in the day. Looking to skip the crowds? Try choosing a quieter departure window and there's a chance you'll save on your fare as well.
What day of the week has the most flights from CJU to GMP?
Travel on a Saturday if you're after the best selection of flights from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP).
What is the earliest flight from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
Take the earliest flight at around 6:55AM UTC+9, leaving from Jeju Intl. Airport (CJU). You'll be flying for around 1h 15m, touching down at Gimpo Intl. Airport (GMP) at approximately 8:10AM UTC+9.
How long does it take to fly from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
The average flight duration from CJU to GMP is 1 hour and 11 minutes, covering a total distance of 280 mi.
What airline has the least delays from CJU to GMP?
Consider booking with Air Busan if you'd like to fly straight from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) without any delays. This airline has the best track record for punctuality, with an on-time score of 90%. Want real-time updates? You can check your flight status using the Expedia App.
What is the best time to fly from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
To avoid possible delays on the Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) route, fly before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seoul from Jeju Intl. Airport (CJU)?
Gimpo Intl. Airport (GMP) is the only airport in Seoul with direct flights from Jeju Intl. Airport (CJU). Explore your options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP) last-minute?
Booking your ticket from CJU to GMP just before your journey is generally more expensive. However, if there's some wiggle room with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a CJU to GMP flight and hotel package?
Securing a CJU to GMP flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP)?
In most instances, you're able to cancel or reschedule your CJU to GMP flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need further information, visit our Customer Service portal.

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