T'Way Air from Jeju to Seoul

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

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

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Jeju to Seoul 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.

Based on Trip.com data in the past 4 weeks, there is 217 flight per week flying from Jeju to Seoul. You can check the weekly schedule for popular airlines on this route below: Korean Air: S/M/T/W/T/F/S -- KE5154 (08:28) Jin Air: S/M/T/W/T/F/S -- LJ534 (07:12) Jin Air: S/M/T/W/T/F/S -- LJ524 (17:02)

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

After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Jeju to Seoul on December 23, 2025 with T'Way Air, with prices starting at S$ 9.

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

The time difference between Seoul and Jeju is 0h.

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.