Seoul, June 1 -- National flag carrier Vietnam Airlines inaugurated a new direct air service linking Busan - the Republic of Korea (RoK)'s second-largest city with Nha Trang, the renowned beach destination in Vietnam's central province of Khanh Hoa on June 1. The new route aims to strengthen direct connectivity and tap into the considerable tourism and economic potential between southern RoK and one of Southeast Asia's most celebrated coastal cities. The launch marked a significant milestone in the national carrier's international expansion strategy and is expected to foster deeper cooperation in tourism and trade between the two nations. Speaking at the inauguration ceremony, Nguyen Huy Duc, head of Vietnam Airlines' branch in the RoK, u...