Cheap flights from Osaka Kansai Intl Airport to Seoul from $120

In general, July is the cheapest month to fly from Osaka Kansai Intl Airport to Incheon Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $180. If you aren’t able to travel to Incheon Intl Airport during the month of July, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $201.

The cheapest day to depart from Osaka Kansai Intl Airport to Incheon Intl Airport is on a Wednesday when prices can be found for as low as $222. On the other hand, Saturday is the most expensive day to depart from Osaka Kansai Intl Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $1,697.

Our most recent data shows that the best time of day to fly to Incheon Intl Airport is in the evening. Flights from Osaka Kansai Intl Airport to Incheon Intl Airport during this time can be as low as $213. Flights in the afternoon are often more expensive, with an average ticket price of $524.

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

You are more likely to see cheaper flights to Incheon Intl Airport from Osaka Kansai Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $256 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Osaka Kansai Intl Airport for as low as $174 on momondo.

There are 3 cabin classes available to choose from on Osaka Kansai Intl Airport to Incheon Intl Airport 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 12% of flights between Osaka and Incheon have experienced a delay on any given week. The average delay length over the past 12 months has been 111 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week that experiences the fewest 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 fewest delays on this route over the last 12 months, with about 5% of their flights experiencing any sort of delay.

As of May 2026, there are 56 flights per day flying from Osaka Kansai Intl Airport to Incheon Intl Airport. The most common time of day flights depart is 18:00, with 32% of flights taking off at midday.

As of May 2026, 394 flights take off from Osaka Kansai Intl Airport and land in Incheon Intl Airport each week. The most common flight departure day for this route is Tue, with 16% of weekly flights taking off on this day.