Find Aero K Airlines(RF) flights from Cheongju to Jeju

At the moment, you can catch a nonstop flight from Cheongju to Jeju City with the following airlines, including: Trinity Airways Jin Air Eastar Jet Jeju Air Aero K Airlines 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 11 minutes to fly from Cheongju 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 Cheongju 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.

Based on Trip.com data in the past 4 weeks, there is 89 flight per week flying from Cheongju 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 -- 7C225 (19:53) Korean Air: S/M/T/W/T/F/S -- KE1725 (17:43) Korean Air: S/M/T/W/T/F/S -- KE5177 (11:52)

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

After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Cheongju to Jeju City on October 21, 2026 with Eastar Jet, with prices starting at US$33.

You can land at any one of the following hubs in Jeju City: Jeju International Airport (CJU). Flying from Cheongju International Airport to Jeju International Airport (CJJ-CJU) is by far the most common option on this route.

The time difference between Jeju City and Cheongju is 0m.

Tickets can only be changed or canceled 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.