Cheap flights from Osaka Kansai Intl Airport to Seoul from $86

The month of September is another great option to travel to Seoul, with average flight prices from Osaka Kansai Intl Airport averaging around $176.

According to our data, Thursday is the cheapest day to fly to Seoul from Osaka Kansai Intl Airport. The lowest ticket price found for a Thursday departure recently was $215. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Sunday, with ticket prices averaging around $636.

Flying to Seoul from Osaka Kansai Intl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $190 when looking at flights departing at noon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $509 per ticket.

Fly from Osaka Kansai Intl to Incheon Intl for the best Osaka Kansai Intl - Seoul flight prices

You are more likely to see cheaper flights to Seoul from Osaka Kansai Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $190 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Osaka Kansai Intl Airport for as low as $146 on momondo.

There are 3 cabin classes available to choose from on Osaka Kansai Intl Airport to Seoul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Jeju Air is the most popular carrier operating from Osaka Kansai Intl to Seoul

Peach, Air Seoul and Jeju Air are the top three most popular airlines that fly to Seoul from Osaka Kansai Intl Airport according to our data. Peach is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 4 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.

Historically, on average around 4% of flights between Osaka and Seoul have experienced a delay on any given week. The average delay length over the past 12 months has been 100 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening 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. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Peach have had the least number of delays on this route over the last 12 months; with about 2% of their flights experiencing any sort of delay.

As of August 2026, there are 67 flights per day flying from Osaka Kansai Intl Airport to Seoul. The most common time of day flights depart is 12:00PM, with 31% of flights taking off at noon.

472 flights are operational weekly from Osaka Kansai Intl Airport to Seoul as of August 2026. The most popular departure day for this route is Fri, with 16% of flights per week taking off on this day.