The national flag carrier Vietnam Airlines has announced that on Dec. 12 it would maintain its regular flights at the Noi Bai International Airport and increase one more flight for customers delayed by foggy weather on the Hanoi-CanTho route and vice versa.

Earlier, on Dec. 11, due to thick fog in a number of northern localities, particularly Hanoi, Vietnam Airlines had to cancel, delay and change the direction of 52 international and domestic flights from and to Noi Bai International Airport.

The carrier had to cancel six flights from Hanoi to central Vinh city, the Mekong Delta City of Can Tho and the northern province of Dien Bien. To avoid bad weather, three flights from Ho Chi Minh City to Hanoi had to change their direction to land at the Da Nang Airport (one flight) and Vientiane Airport of Laos (two flights).

One flight from Da Nang to Hanoi had to land at Vientiane Airport and two flights from Can Tho and Nha Trang had to land at Da Nang Airport.

Around 40 domestic and international flights departing from Noi Bai International Airport had to be delayed.