$159 Cheap Flights from Jeju (CJU) to Seoul (ICN)

View $159 flight on Wed, Oct 29, 2025Opens in a new window

Popular airlines from Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Jeju to Seoul (CJU-ICN)

Prices were available within the past 7 days and start at $159 for one-way flights and $322 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Thu, Nov 20 - Sun, Nov 30
CJU
Jeju City
ICN
Seoul
$322 Roundtrip, found 20 hours ago
$322
Roundtrip
found 20 hours ago
Select China Eastern Airlines flight, departing Thu, Nov 20 from Jeju City to Seoul, returning Sun, Nov 30, priced at $322 found 20 hours ago
China Eastern Airlines
Tue, Dec 2 - Sun, Dec 14
CJU
Jeju City
ICN
Seoul
$322 Roundtrip, found 20 hours ago
$322
Roundtrip
found 20 hours ago
Select China Eastern Airlines flight, departing Tue, Dec 2 from Jeju City to Seoul, returning Sun, Dec 14, priced at $322 found 20 hours ago
China Eastern Airlines
Fri, Nov 21 - Sun, Nov 30
CJU
Jeju City
ICN
Seoul
$326 Roundtrip, found 20 hours ago
$326
Roundtrip
found 20 hours ago
Select China Eastern Airlines flight, departing Fri, Nov 21 from Jeju City to Seoul, returning Sun, Nov 30, priced at $326 found 20 hours ago
China Eastern Airlines
Fri, Nov 21 - Tue, Dec 2
CJU
Jeju City
ICN
Seoul
$330 Roundtrip, found 20 hours ago
$330
Roundtrip
found 20 hours ago
Select China Eastern Airlines flight, departing Fri, Nov 21 from Jeju City to Seoul, returning Tue, Dec 2, priced at $330 found 20 hours ago
China Eastern Airlines
Tue, Nov 4 - Tue, Nov 18
CJU
Jeju City
ICN
Seoul
$336 Roundtrip, found 20 hours ago
$336
Roundtrip
found 20 hours ago
Select China Eastern Airlines flight, departing Tue, Nov 4 from Jeju City to Seoul, returning Tue, Nov 18, priced at $336 found 20 hours ago
China Eastern Airlines
Sat, Nov 15 - Sun, Nov 30
CJU
Jeju City
ICN
Seoul
$340 Roundtrip, found 20 hours ago
$340
Roundtrip
found 20 hours ago
Select China Eastern Airlines flight, departing Sat, Nov 15 from Jeju City to Seoul, returning Sun, Nov 30, priced at $340 found 20 hours ago
China Eastern Airlines
Sat, Nov 15 - Tue, Dec 2
CJU
Jeju City
ICN
Seoul
$344 Roundtrip, found 20 hours ago
$344
Roundtrip
found 20 hours ago
Select China Eastern Airlines flight, departing Sat, Nov 15 from Jeju City to Seoul, returning Tue, Dec 2, priced at $344 found 20 hours ago
Air China
Wed, Nov 19 - Wed, Dec 3
CJU
Jeju City
ICN
Seoul
$404 Roundtrip, found 20 hours ago
$404
Roundtrip
found 20 hours ago
Select Air China flight, departing Wed, Nov 19 from Jeju City to Seoul, returning Wed, Dec 3, priced at $404 found 20 hours ago
T'Way Air
Sat, Oct 4 - Mon, Oct 20
CJU
Jeju City
ICN
Seoul
$554 Roundtrip, found 1 day ago
$554
Roundtrip
found 1 day ago
Select T'Way Air flight, departing Sat, Oct 4 from Jeju City to Seoul, returning Mon, Oct 20, priced at $554 found 1 day ago
Juneyao Air
Fri, Oct 24 - Mon, Nov 10
CJU
Jeju City
ICN
Seoul
$588 Roundtrip, found 1 day ago
$588
Roundtrip
found 1 day ago
Select Juneyao Air flight, departing Fri, Oct 24 from Jeju City to Seoul, returning Mon, Nov 10, priced at $588 found 1 day ago

Frequently asked questions

How much does a flight from Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN) cost?
Get a cheap one-way flight from $159 or cheap return flight from $322 from Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN)?
Flying in November is a good way to save, as it's the cheapest month for flights between CJU and ICN. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest CJU to ICN flight.
How many flights per day from Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN)?
You'll have to catch a flight with a layover if you're traveling from Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from CJU to ICN?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN)?
To avoid potential delays on the Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN) route, fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**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)?
Compare your flight options from Jeju Intl. Airport (CJU) to Gimpo Intl. Airport (GMP). This is the only Seoul airport you can fly into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Jeju Intl. Airport (CJU) to Incheon Intl. Airport (ICN) last-minute?
Booking your flight from CJU to ICN shortly before your trip is generally more expensive. But if you're flexible with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a CJU to ICN flight and hotel package?
Booking a CJU to ICN flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our extensive 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 Incheon Intl. Airport (ICN)?
If you reserved your CJU to ICN flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Travel information

Origin airport
Jeju Intl.
Destination airport
Incheon Intl.
Airlines serving
Air China, China Eastern Airlines
Roundtrip price
$321
Distance
273 mi

Book with confidence

Book with confidence

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 November. 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 $159 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.

 

Jeju to Seoul Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.