CJJ to CJU, Cheongju International Airport to Jeju International Airport Cheap Flights

Based on HopeGoo data, Eastar Jet offers one-way fares as low as US$12 on Cheapest nonstop routes (e.g. CJJ to CJU on Tue, Mar 3), while Eastar Jet offers Cheapest nonstop round-trips from US$25 departing on Tue, Mar 3 and returning on Tue, Mar 10.

At the moment, you can catch a nonstop flight from Cheongju to Jeju with the following airlines, including: T'Way Air Jeju Air Eastar Jet Jin Air Aero K Airlines Selected airlines are based on historical data collected from flight bookings users made on HopeGoo within the last 90 days.

It takes about 1 hour 10 minutes to fly from Cheongju to Jeju.

By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Cheongju 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.

Based on HopeGoo data in the past 4 weeks, there is 86 flight per week flying from Cheongju to Jeju. You can check the weekly schedule for popular airlines on this route below: T'Way Air: S/M/T/W/T/F/S -- TW863 (19:08) T'Way Air: S/M/T/W/T/F/S -- TW833 (13:50) Jin Air: S/M/T/W/T/F/S -- LJ409 (16:23)

To find best deals on flights from Cheongju to Jeju, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Mar 3, with one-way flights priced at just US$12. · 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 HopeGoo 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 HopeGoo app users.

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

After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Cheongju to Jeju on February 10, 2026 with Eastar Jet, with prices starting at US$22.

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

The time difference between Jeju and Cheongju is 0h.

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 HopeGoo, 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.