Cheap flights from Cheongju to Jeju City from $42

The month of January is, on average, the cheapest month to fly to Jeju City from Cheongju, with most prices found around $55. If you aren’t able to travel during the month of January, then book flights to Jeju City from Cheongju during March instead. Flights to Jeju City in March, while not as cheap as those in January, still average around $65.

The cheapest day to depart from Cheongju to Jeju City is on a Tuesday. Travelers who choose to depart for Jeju City on a Tuesday will often find tickets for as low as $81. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Cheongju to Jeju City for around $127.

In the evening is the cheapest time of day to fly from Cheongju to Jeju City when you can find flight prices for as low as $85. Flying to Jeju City in the evening is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $106.

Fly from Cheongju to Jeju City for the best Cheongju - Jeju City flight prices

You are more likely to see cheaper flights to Jeju City from Cheongju when booking weeks ahead of your departure date. In general, you can expect to find flights to Jeju City for around $88 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Jeju City from Cheongju for as low as $71 on momondo.

There are 2 cabin classes available to choose from on Cheongju to Jeju City flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Korean Air, Asiana Airlines, and Jin Air are the most popular carriers operating from Cheongju to Jeju City

Jeju Air, Asiana Airlines and Trinity Airways (Formerly T'way Air) are the top three most popular airlines that fly to Jeju City from Cheongju according to our data. Jeju Air is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Jeju City. Keep in mind that there are 8 different airlines that fly to Jeju City on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% of flights between Cheongju and Jeju City have experienced a delay on any given week. The average delay length over the past 12 months has been 84 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Korean Air have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

As of November 2026, there are 25 flights per day flying from Cheongju to Jeju City. The most common time of day flights depart is 11:00AM, with 44% of flights taking off at noon.

As of November 2026, there are 176 flights per week flying from Cheongju to Jeju City. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.