Cheap flights from Seoul to Osaka from $57

In general, August is the cheapest month to fly from Seoul to Osaka Kansai Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $150. If you aren’t able to travel during the month of August, then book flights to Osaka Kansai Intl Airport from Seoul during September instead. Flights to Osaka Kansai Intl Airport in September, while not as cheap as those in August, still average around $151.

The cheapest day to depart from Seoul to Osaka Kansai Intl Airport is on a Tuesday. Travelers who choose to depart for Osaka Kansai Intl Airport on a Tuesday will often find tickets for as low as $172. Flights from Seoul to Osaka Kansai Intl Airport on a Friday will generally be more expensive and average around $270. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Seoul to Osaka Kansai Intl Airport flights are usually those with departure times at noon. Our users have found flights to Osaka Kansai Intl Airport at noon for as low as $190. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $218 on average. Flights to Osaka Kansai Intl Airport from Seoul in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Osaka Kansai Intl Airport from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Osaka Kansai Intl Airport for around $190 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Osaka Kansai Intl Airport from Seoul for as low as $167 on momondo.

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

Eastar Jet, Jeju Air, and Asiana Airlines are the most popular carriers operating from Seoul to Osaka Kansai Intl

Peach, Jeju Air and Asiana Airlines are the top three most popular airlines that fly to Osaka Kansai Intl Airport from Seoul according to our data. Peach is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Osaka Kansai Intl Airport. Keep in mind that there are 9 different airlines that fly to Osaka Kansai Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 7% of flights between Seoul and Osaka have experienced a delay on any given week. The average delay length over the past 12 months has been 80 minutes.

Generally, flights departing in the morning 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, Korean Air have had the least number of delays on this route over the last 12 months; with about 3% of their flights experiencing any sort of delay.

As of October 2026, 45 flights take off from Seoul and land in Osaka Kansai Intl Airport each day. The most common flight departure time for this route is 9:00AM, with 39% of daily flights taking off at noon.

315 flights are operational weekly from Seoul to Osaka Kansai Intl Airport as of October 2026. The most popular departure day for this route is Wed, with 27% of flights per week taking off on this day.