Cheap Flights from Cheongju (CJJ) to Jeju City (CJU)

Frequently Asked Questions

• What are the cheapest flights from Cheongju to Jeju City (CJJ-CJU)?

  Based on Trip.com data, Eastar Jet offers one-way fares as low as US$18 on Cheapest nonstop routes (e.g. CJJ to CJU on Mon, Apr 27), while Eastar Jet offers Cheapest nonstop round-trips from US$33 departing on Tue, Apr 28 and returning on Thu, Apr 30.

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

  At the moment, you can catch a nonstop flight from Cheongju to Jeju City 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 Trip.com within the last 90 days.

• How long is a flight from Cheongju to Jeju City?

  It takes about 1 hour 11 minutes to fly from Cheongju to Jeju City.

• When is the best time to book flights 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.

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

  Based on Trip.com data in the past 4 weeks, there is 87 flight per week flying from Cheongju to Jeju City. You can check the weekly schedule for popular airlines on this route below: Jin Air: S/M/T/W/T/F/S -- LJ409 (19:47) Aero K Airlines: S/M/T/W/T/F/S -- RF609 (14:39) Korean Air: S/M/T/W/T/F/S -- KE1725 (17:37)

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

  To find best deals on flights from Cheongju 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 Mon, Apr 27, with one-way flights priced at just US$18.
  · 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 are flight tickets from Cheongju (CJJ) to Jeju City (CJU) the cheapest?

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

• Which upcoming date is cheapest to fly from Cheongju to Jeju City on?

  After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Cheongju to Jeju City on April 27, 2026 with Jeju Air, with prices starting at US$19.

• Which airports can I fly to for Jeju City from Cheongju?

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

• Is there any time difference between Cheongju and Jeju City?

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

• How do I change or cancel my ticket from Cheongju to Jeju City?

  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.