$221 Cheap Flights from Seoul (ICN) to Jeju (CJU)

View $221 flight on Tue, Apr 14, 2026Opens in a new window

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

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Cheap Flights from Seoul to Jeju (ICN-CJU)

Prices were available within the past 7 days and start at $221 for one-way flights and $451 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Mon, Mar 30 - Fri, Apr 10
ICN
Seoul
CJU
Jeju City
$451 Roundtrip, found 16 hours ago
$451
Roundtrip
found 16 hours ago
Select Air China flight, departing Mon, Mar 30 from Seoul to Jeju City, returning Fri, Apr 10, priced at $451 found 16 hours ago
Air China
Mon, Mar 30 - Wed, Apr 15
ICN
Seoul
CJU
Jeju City
$452 Roundtrip, found 1 day ago
$452
Roundtrip
found 1 day ago
Select Air China flight, departing Mon, Mar 30 from Seoul to Jeju City, returning Wed, Apr 15, priced at $452 found 1 day ago
Air China
Mon, Mar 30 - Wed, Apr 15
ICN
Seoul
CJU
Jeju City
$458 Roundtrip, found 2 days ago
$458
Roundtrip
found 2 days ago
Select Air China flight, departing Mon, Mar 30 from Seoul to Jeju City, returning Wed, Apr 15, priced at $458 found 2 days ago
Air China
Mon, Mar 30 - Mon, Apr 13
ICN
Seoul
CJU
Jeju City
$468 Roundtrip, found 6 days ago
$468
Roundtrip
found 6 days ago
Select Air China flight, departing Mon, Mar 30 from Seoul to Jeju City, returning Mon, Apr 13, priced at $468 found 6 days ago
Air China
Wed, Apr 1 - Mon, Apr 13
ICN
Seoul
CJU
Jeju City
$547 Roundtrip, found 6 days ago
$547
Roundtrip
found 6 days ago
Select Air China flight, departing Wed, Apr 1 from Seoul to Jeju City, returning Mon, Apr 13, priced at $547 found 6 days ago
Air China
Sun, Mar 29 - Fri, Apr 17
ICN
Seoul
CJU
Jeju City
$553 Roundtrip, found 6 days ago
$553
Roundtrip
found 6 days ago
Select Air China flight, departing Sun, Mar 29 from Seoul to Jeju City, returning Fri, Apr 17, priced at $553 found 6 days ago
Air China
Mon, Apr 6 - Fri, Apr 10
ICN
Seoul
CJU
Jeju City
$554 Roundtrip, found 17 hours ago
$554
Roundtrip
found 17 hours ago
Select Air China flight, departing Mon, Apr 6 from Seoul to Jeju City, returning Fri, Apr 10, priced at $554 found 17 hours ago
Air China
Mon, Apr 27 - Mon, May 11
ICN
Seoul
CJU
Jeju City
$556 Roundtrip, found 1 day ago
$556
Roundtrip
found 1 day ago
Select Air China flight, departing Mon, Apr 27 from Seoul to Jeju City, returning Mon, May 11, priced at $556 found 1 day ago
Air China
Mon, Mar 30 - Mon, Apr 13
ICN
Seoul
CJU
Jeju City
$560 Roundtrip, found 16 hours ago
$560
Roundtrip
found 16 hours ago
Select Air China flight, departing Mon, Mar 30 from Seoul to Jeju City, returning Mon, Apr 13, priced at $560 found 16 hours ago
Air China
Sun, Mar 29 - Mon, Mar 30
ICN
Seoul
CJU
Jeju City
$562 Roundtrip, found 3 days ago
$562
Roundtrip
found 3 days ago
Select Air China flight, departing Sun, Mar 29 from Seoul to Jeju City, returning Mon, Mar 30, priced at $562 found 3 days ago
Air China
Sun, Apr 26 - Mon, May 11
ICN
Seoul
CJU
Jeju City
$573 Roundtrip, found 2 days ago
$573
Roundtrip
found 2 days ago
Select Air China flight, departing Sun, Apr 26 from Seoul to Jeju City, returning Mon, May 11, priced at $573 found 2 days ago
Air China
Mon, Mar 30 - Wed, Apr 15
ICN
Seoul
CJU
Jeju City
$580 Roundtrip, found 16 hours ago
$580
Roundtrip
found 16 hours ago
Select Air China flight, departing Mon, Mar 30 from Seoul to Jeju City, returning Wed, Apr 15, priced at $580 found 16 hours ago
Air China
Mon, Mar 30 - Wed, Apr 1
ICN
Seoul
CJU
Jeju City
$587 Roundtrip, found 1 day ago
$587
Roundtrip
found 1 day ago
Select Air China flight, departing Mon, Mar 30 from Seoul to Jeju City, returning Wed, Apr 1, priced at $587 found 1 day ago
China Eastern Airlines
Fri, Mar 27 - Sun, Mar 29
ICN
Seoul
CJU
Jeju City
$648 Roundtrip, found 12 hours ago
$648
Roundtrip
found 12 hours ago
Select China Eastern Airlines flight, departing Fri, Mar 27 from Seoul to Jeju City, returning Sun, Mar 29, priced at $648 found 12 hours ago
Shanghai Airlines
Sun, Mar 22 - Sun, Mar 29
ICN
Seoul
CJU
Jeju City
$664 Roundtrip, found 12 hours ago
$664
Roundtrip
found 12 hours ago
Select Shanghai Airlines flight, departing Sun, Mar 22 from Seoul to Jeju City, returning Sun, Mar 29, priced at $664 found 12 hours ago
Juneyao Air
Fri, Apr 17 - Sat, May 2
ICN
Seoul
CJU
Jeju City
$965 Roundtrip, found 1 day ago
$965
Roundtrip
found 1 day ago
Select Juneyao Air flight, departing Fri, Apr 17 from Seoul to Jeju City, returning Sat, May 2, priced at $965 found 1 day ago

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

December is typically the cheapest month to fly

From $267 - $577 per traveler.

Frequently asked questions

How much does a flight from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU) cost?
Snag a cheap one-way flight from $221 or cheap return flight from $451 from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU)?
The cheapest month to fly from ICN to CJU is March, when there's less demand. Off-peak months are generally when better flight deals are available between these airports.
Which airlines fly direct from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU)?
There's no direct route from Seoul (ICN-Incheon Intl.) to Jeju Intl. Airport (CJU). However, you can find other airports that have nonstop flights. Board your plane at Gimpo Intl. Airport (GMP) and travel straight to Jeju City without layovers.
What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU)?
To find the cheapest airline flying from ICN to CJU, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU)?
Direct flights from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ICN to CJU?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU)?
Select a flight from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU) that takes off before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be 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.
Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU) last-minute?
Booking your plane ticket from ICN to CJU just before your trip is generally more expensive. However, if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book an ICN to CJU flight and hotel package?
You'll typically save money by booking an ICN to CJU flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your ideal flights and accommodations, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Jeju Intl. Airport (CJU)?
It's usually possible to reschedule or cancel your ICN to CJU flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Incheon Intl.
Destination airport
Jeju Intl.
Airlines serving
Air China, China Eastern Airlines, Juneyao Air
Roundtrip price
$450
Distance
273 mi

Book with confidence

Seoul to Jeju Flights

The cheapest times to fly from Seoul to Jeju

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 Seoul to Jeju are during the month of March. You can find some of the cheapest flights from Seoul to Jeju with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seoul to Jeju

Sunday is one of the best days to book for cheap flights from Seoul to Jeju: 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 Seoul to Jeju

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 Seoul to Jeju in 2025. You can also book with separate airlines for your outbound and return journeys, from $221 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 Seoul to Jeju 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 Seoul to Jeju 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.

 

Seoul to Jeju Flights

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*Available to One Key members.