By starting from an open flight routes between Gimpo (Seoul)-Jeju route on the 11st then will have extended flight routes between countries in the 16-country of destination.
By starting from the opening of routes between Gimpo (Seoul) -Jeju route on the 11th. It will then be extended to international routes in 16 countries.
By starting from the open air route between Gimpo (Seoul) - Jeju route on the 11th. Then be extended flight path in international 16 destination country.