Cheap Flights from Seoul to Jeju from AU$ 20

Flight FAQs

• Which airlines offer the cheapest flights from Seoul (SEL) to Jeju (CJU)?

  Based on Trip.com data, Eastar Jet offers one-way fares as low as AU$ 20 on Cheapest nonstop routes (e.g. GMP to CJU on Tue, Feb 3), while Jin Air offers Cheapest nonstop round-trips from AU$ 44 departing on Tue, Feb 10 and returning on Thu, Feb 12.

• Which airlines offer direct flights from Seoul to Jeju?

  At the moment, you can catch a direct flight from Seoul to Jeju with the following airlines, including: Jeju Air Korean Air Eastar Jet Jin Air T'Way Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is the flights from Seoul (SEL) to Jeju (CJU)?

  It takes about 1 hour 15 minutes to fly from Seoul (SEL) to Jeju (CJU).

• When is the best time to book flights from Seoul to Jeju?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seoul to Jeju is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Seoul to Jeju?

  Based on Trip.com data in the past 4 weeks, there is 225 flight per week flying from Seoul to Jeju. You can check the weekly schedule for popular airlines on this route below: Jeju Air: S/M/T/W/T/F/S -- 7C113 (10:54) Jeju Air: S/M/T/W/T/F/S -- 7C101 (06:42) Korean Air: S/M/T/W/T/F/S -- KE1233 (21:04)

• How can I find the best deals on flights from Seoul to Jeju?

  To find best deals on flights from Seoul to Jeju, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Feb 3, with one-way flights priced at just AU$ 20.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Eastar Jet.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Jeju travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Seoul to Jeju to get the best price?

  The cheapest months to fly from Seoul to Jeju is September, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Seoul to Jeju?

  After crunching the numbers on our January flight calendar, it's currently cheapest to fly from Seoul to Jeju on January 22, 2026 with Jeju Air, with prices starting at AU$ 27.

• Which airports can I fly through when travelling to Jeju from Seoul?

  You can land at any one of the following hubs in Jeju, with Gimpo International Airport to Jeju International Airport (GMP-CJU) is by far the most common option on this route: Jeju International Airport (CJU).

• What is the time difference between Seoul and Jeju?

  The time difference between Jeju and Seoul is 0h.

• How can I change or cancel my flight ticket from Seoul to Jeju?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.