Cheap flights from Seoul Gimpo Intl Airport to Jeju City from $20

The month of January is, on average, the cheapest month to fly to Jeju City from Seoul Gimpo Intl Airport, 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 Seoul Gimpo Intl Airport during March instead. Flights to Jeju City in March, while not as cheap as those in January, still average around $58.

The cheapest day to depart from Seoul Gimpo Intl Airport to Jeju City is on a Monday. Travelers who choose to depart for Jeju City on a Monday will often find tickets for as low as $67. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seoul Gimpo Intl Airport to Jeju City for around $105.

In the evening is the cheapest time of day to fly from Seoul Gimpo Intl Airport to Jeju City when you can find flight prices for as low as $67. 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 $97.

Fly from Seoul Gimpo Intl to Jeju City for the best Seoul Gimpo Intl - Jeju City flight prices

You are more likely to see cheaper flights to Jeju City from Seoul Gimpo Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Jeju City for around $79 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Jeju City from Seoul Gimpo Intl Airport for as low as $76 on momondo.

Jin Air and Jeju Air are the most popular carriers operating from Seoul Gimpo Intl to Jeju City

Jeju Air, Korean Air and Asiana Airlines are the top three most popular airlines that fly to Jeju City from Seoul Gimpo Intl Airport according to our data. Jeju Air is the first choice among our users, with 33% 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 15% of flights between Seoul and Jeju City have experienced a delay on any given week. The average delay length over the past 12 months has been 82 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.

Sunday 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, Asiana Airlines have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

As of April 2026, 122 flights take off from Seoul Gimpo Intl Airport and land in Jeju City each day. The most common flight departure time for this route is 6:00AM, with 43% of daily flights taking off at noon.

The number of flights available between Seoul Gimpo Intl Airport and Jeju City is 856 per week as of April 2026. The most frequent departure day is Thu, with 15% of weekly flights leaving on this day.