Cheap flights from Osaka Kansai Intl Airport to Busan from $113

The cheapest month to fly to Busan from Osaka Kansai Intl Airport is in August. Flight prices, which tend to average around $157, are often lower during this time because this is during the off-season. If you aren’t able to travel to Busan during the month of August, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $162.

Our data shows that Saturday is the least expensive day to fly to Busan. Tickets to fly out on this day can be as low as $198. Flights from Osaka Kansai Intl Airport to Busan on a Sunday will generally be more expensive and average around $409. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the afternoon is the cheapest time of day to fly from Osaka Kansai Intl Airport to Busan when you can find flight prices for as low as $196. Flying to Busan in the afternoon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Busan, so prices are often more expensive at around $243 per ticket.

Fly from Osaka Kansai Intl to Busan Gimhae for the best Osaka Kansai Intl - Busan Gimhae flight prices

You are more likely to see cheaper flights to Busan from Osaka Kansai Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Busan for around $192 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Busan from Osaka Kansai Intl Airport for as low as $166 on momondo.

There is only 1 cabin class available to choose from on Osaka Kansai Intl Airport to Busan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 8% of flights between Osaka and Busan have experienced a delay on any given week. The average delay length over the past 12 months has been 89 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.

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

According to our data, Eastar Jet have had the least number of delays on this route over the last 12 months; with about 4% of their flights experiencing any sort of delay.

As of October 2026, 15 flights take off from Osaka Kansai Intl Airport and land in Busan each day. The most common flight departure time for this route is 10:00AM, with 39% of daily flights taking off in the afternoon.

The number of flights available between Osaka Kansai Intl Airport and Busan is 110 per week as of October 2026. The most frequent departure day is Wed, with 15% of weekly flights leaving on this day.