Cheap flights from Incheon Intl Airport to Osaka from $70

In general, July is the cheapest month to fly from Incheon Intl Airport to Osaka Kansai Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $107. If you aren’t able to travel during the month of July, then book flights to Osaka Kansai Intl Airport from Incheon Intl Airport during August instead. Flights to Osaka Kansai Intl Airport in August, while not as cheap as those in July, still average around $116.

The cheapest day to depart from Incheon Intl Airport 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 $148. Flights from Incheon Intl Airport to Osaka Kansai Intl Airport on a Thursday will generally be more expensive and average around $208. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Incheon Intl Airport 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 $158. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $227 on average. Flights to Osaka Kansai Intl Airport from Incheon Intl Airport 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 Incheon Intl - Osaka Kansai Intl flight prices

You are more likely to see cheaper flights to Osaka Kansai Intl Airport from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Osaka Kansai Intl Airport for around $174 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 Incheon Intl Airport for as low as $131 on momondo.

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

Air Seoul, Jeju Air, and Jin Air are the most popular carriers operating from Incheon Intl to Osaka Kansai Intl

Peach, Jeju Air and Jin Air are the top three most popular airlines that fly to Osaka Kansai Intl Airport from Incheon Intl Airport according to our data. Peach is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Osaka Kansai Intl Airport. Keep in mind that there are 10 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 21% of flights between Incheon and Osaka have experienced a delay on any given week. The average delay length over the past 12 months has been 97 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night 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, Air Busan have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

As of March 2026, there are 56 flights per day flying from Incheon Intl Airport to Osaka Kansai Intl Airport. The most common time of day flights depart is 3:00PM, with 46% of flights taking off at noon.

The number of flights available between Incheon Intl Airport and Osaka Kansai Intl Airport is 392 per week as of March 2026. The most frequent departure day is Fri, with 16% of weekly flights leaving on this day.