We've gone through lots of different flights, to help you find the cheapest way to get from Osaka Kansai International Airport to Seoul. You can choose from four airlines. At the moment, 01 / Jul / 2025 is the cheapest date to travel, but scroll through the results to find the option that works best for you.
But it's still worth looking at other options, as there are 19 flights to Seoul every week. If you want to broaden your search, look at flights departing from other airports.
The distance between Osaka Kansai International Airport to Seoul is 860 km. Normally, it takes about 6 hrs 15 mins to fly, and you can definitely expect the journey to be at least 2 hrs. You can see the various flight times in the results.
Searching by month, for instance, will show you the best time of the week to fly.
