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 three airlines.
Singapore Airlines is the most popular airline that flies from Osaka Kansai International Airport to Seoul. But it's still worth looking at other options, as there are 15 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 28 hrs 15 mins to fly, and you can definitely expect the journey to be at least 15 hrs 45 mins. 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.