Cheap Flights Seoul to Jeju City from £20

Flight FAQs

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

  Based on Trip.com data, Eastar Jet offers one-way fares as low as £20 on Cheapest nonstop routes (e.g. GMP to CJU on Tue, Jun 9), while T'Way Air offers Cheapest nonstop round-trips from £40 departing on Wed, Jun 24 and returning on Wed, Jul 1.

• Which airlines offer direct flights from Seoul to Jeju City?

  At the moment, you can catch a direct flight from Seoul to Jeju City with the following airlines, including: Jeju Air Eastar Jet T'Way Air Jin Air Korean 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 flight from Seoul (SEL) to Jeju City (CJU)?

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

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

  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 City 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 City?

  Based on Trip.com data in the past 4 weeks, there is 179 flight per week flying from Seoul to Jeju City. You can check the weekly schedule for popular airlines on this route below: Jeju Air: S/M/T/W/T/F/S -- 7C125 (14:33) Jeju Air: S/M/T/W/T/F/S -- 7C141 (21:06) Eastar Jet: S/M/T/W/T/F/S -- ZE233 (19:45)

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

  To find best deals on flights from Seoul to Jeju City, 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, Jun 9, with one-way flights priced at just £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 City 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 City to get the best price?

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

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

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Seoul to Jeju City on June 30, 2026 with Jeju Air, with prices starting at £16.

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

  You can land at any one of the following hubs in Jeju City, 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 City?

  The time difference between Jeju City and Seoul is 0h.

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

  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.