There are 6 ways to get from japan to south korea by plane, subway, train, ferry or car. Sorry, the japan to south korea service is no longer available with direct ferries. Shipment of large items can sometimes be a huge hassle for businesses and individuals, but at eurosender, we make this simple. Our pallet shipping and warehouse options are a great idea for those needing to move high quantities and larger items from japan to south korea. The cheapest flight from japan to south korea is from tokyo to seoul, with airfares starting at usd 119. The most popular airlines flying from japan to south korea are tway air, jetstar japan, korean air. The most popular city destinations in south korea are seoul, jeju, busan. I was in osaka for close to 4 years and seoul for about a year and a half.