Vietravel Airlines, a subsidiary of tour operator Viettravel, has operated its first direct flight from Nha Trang city in the central province of Khanh Hoa to Muan of South Korea.
Source: VNExpress International,
https://e.vnexpress.net/news/travel/vietravel-airlines-operates-first-flight-connecting-nha-trang-with-south-korea-s-muan-4659116.html