Demand is particularly strong on routes from Ho Chi Minh City to Ha Noi, Nha Trang, Phu Quoc, and Da Nang City.
A recent survey found that some round-trip economy tickets cost between roughly 115 and 235 US dollars, depending on the route and departure time.
While cheaper tickets remain available, they are limited and tend to sell out quickly.
Meanwhile, travel companies are promoting short overseas tours to Thailand, Singapore, and Malaysia for the holiday period.
