Cheap Flights from Jeju City to Cheongju from $18

Frequently Asked Questions

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

  Based on Trip.com data, T'Way Air offers one-way fares as low as $18 on Cheapest nonstop routes (e.g. CJU to CJJ on Thu, Sep 10), while T'Way Air offers Cheapest nonstop round-trips from $36 departing on Thu, Sep 10 and returning on Mon, Sep 14.

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

  At the moment, you can catch a nonstop flight from Jeju City to Cheongju with the following airlines, including: T'Way Air Jin Air Korean Air 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.

• How long does it take to fly from Jeju City (CJU) to Cheongju (CJJ) and what is the distance?

  It takes around 1 hour 11 minutes to fly from Jeju City (CJU) to Cheongju (CJJ).

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

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

  Based on Trip.com data in the past 4 weeks, there is 76 flight per week flying from Jeju City to Cheongju. You can check the weekly schedule for popular airlines on this route below: Korean Air: S/M/T/W/T/F/S -- KE5182 (14:39) Eastar Jet: S/M/T/W/T/F/S -- ZE716 (21:54)

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

  To find best deals on flights from Jeju City to Cheongju, 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 Thu, Sep 10, with one-way flights priced at just $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 T'Way Air.
  · 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 Cheongju travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Jeju City (CJU) to Cheongju (CJJ) the cheapest?

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

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

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Jeju City to Cheongju on September 16, 2026 with Jeju Air, with prices starting at $16.

• Which airports can I fly into Cheongju from Jeju City?

  You can arrive at any of the following airports in Cheongju: Cheongju International Airport (CJJ). Flights from Jeju International Airport to Cheongju International Airport (CJU-CJJ) are by far the most popular option for this route.

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

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

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

  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.

• What is the average cost of a one-way flight from Jeju City to Cheongju?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Jeju City to Cheongju is $77. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Jeju City to Cheongju?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Jeju City to Cheongju is $96. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Jeju City to Cheongju on Trip.com?

  Enter Jeju City and Cheongju, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the Jeju City to Cheongju route?

  T'Way Air, Jeju Air and Aero K Airlinesare the most popular budget airlines flying from Jeju City to Cheongju. Check baggage, seat and payment fees before comparing the final price.