$98 Cheap Korean Air flights Ulsan (USN) to Jeju (CJU)

Finding cheap one-way Korean Air flights from USN to CJU from $98 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $196 for your next exciting vacation.**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.

January is one of the most affordable months to travel to Jeju City with Korean Air. You could also find excellent prices on return and one-way tickets in February.

Start searching one to three months before your departure to score cheaper fares on Korean Air flights from Ulsan Airport (USN) to Jeju Intl. Airport (CJU). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic trips.*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.

Take off on one of Korean Air’s 7 direct weekly flights from Ulsan Airport (USN) to Jeju Intl. Airport (CJU). To see your options, enter your travel dates, origin and destination and hit search. Then select the “Nonstop” and “Airline” filters.

It takes around 1h 5m to travel nonstop from Ulsan Airport (USN) to Jeju Intl. Airport (CJU) with Korean Air.

Setting off from USN at 4:00PM UTC+9, the first Korean Air flight to CJU lands at 5:05PM UTC+9. Flying earlier in the day means you’re less likely to experience delays.* Don’t like early starts? The last Korean Air flight from USN to CJU departs at 4:00PM UTC+9 and touches down at 5:05PM UTC+9.*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.

Korean Air flights from Ulsan Airport (USN) to Jeju City arrive at Jeju Intl. Airport (CJU). This is the main gateway to this destination.

Korean Air allows you to bring 2 checked-in bags weighing up to 50 lb with maximum dimensions of 62 inches on standard economy flights from USN to CJU. You can also bring 1 cabin bag with you in the cabin. This carry-on luggage must not exceed 21 inches x 15 inches x 7 inches and weigh less than 39 lb. Baggage rules can differ depending on the cabin class and fare type, so check your booking or Korean Air’s website to avoid any extra fees at the airport.

Depart from USN to CJU with Korean Air and look forward to a host of benefits including a 5-star airline rating. When booking through Expedia as a Korean Airlines Skypass and One Key™ member, you can also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Korean Air typically operates Airbus A220-300 planes for flights from Ulsan Airport (USN) to Jeju Intl. Airport (CJU). Keep in mind that aircraft type can vary depending on operational demands, so the plane you board might be different on the day.

Typically, you can change or cancel your flight, although additional charges may apply if you made your booking over 24 hours ago. Need flexible options? Use our “Changes included” or “No cancel fee” filter to find flights that won’t charge extra if you have to adjust your plans. To update your booking, go to “Trips,” select your flight and click on “Manage Booking” for more details.