Cheap flights from Busan to Osaka from $51

In general, July is the cheapest month to fly from Busan to Osaka Kansai Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $122. If you aren’t able to travel during the month of July, then book flights to Osaka Kansai Intl Airport from Busan during September instead. Flights to Osaka Kansai Intl Airport in September, while not as cheap as those in July, still average around $125.

The cheapest day to depart from Busan to Osaka Kansai Intl Airport is on a Sunday. Travelers who choose to depart for Osaka Kansai Intl Airport on a Sunday will often find tickets for as low as $126. Flights from Busan to Osaka Kansai Intl Airport on a Wednesday will generally be more expensive and average around $212. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Busan 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 $164. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $172 on average. Flights to Osaka Kansai Intl Airport from Busan in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Osaka Kansai Intl Airport from Busan when booking weeks ahead of your departure date. In general, you can expect to find flights to Osaka Kansai Intl Airport for around $194 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 Busan for as low as $138 on momondo.

There is only 1 cabin class available to choose from on Busan 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 and Jin Air are the most popular carriers operating from Busan Gimhae to Osaka Kansai Intl

T'way Air, Jeju Air and Jin Air are the top three most popular airlines that fly to Osaka Kansai Intl Airport from Busan according to our data. T'way Air is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Osaka Kansai Intl Airport. Keep in mind that there are 5 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 8% of flights between Busan and Osaka have experienced a delay on any given week. The average delay length over the past 12 months has been 81 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. 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 2% of their flights experiencing any sort of delay.

The number of flights available between Busan and Osaka Kansai Intl Airport is 16 per day as of May 2026. The most frequent departure time is 1:00PM, with 62% of daily flights leaving in the afternoon.

As of May 2026, 118 flights take off from Busan and land in Osaka Kansai Intl Airport each week. The most common flight departure day for this route is Wed, with 15% of weekly flights taking off on this day.