Many flights had to wait some 30-40 minutes in the Phan Thiet City flight area for the weather to improve for them to land safely in Tan Son Nhat, the company's Deputy Director Dang Van Thai said.
Statistics showed that Tan Son Nhat Airport served 744 flights with 114,095 passengers on June 28.
The Vietnam Air Traffic Management Corporation said that rains would occur more often during June and July, especially in the late afternoons, affecting the operation of flights at Tan Son Nhat Airport.
Earlier on June 4 and 5, a total of 135 flights had been delayed or switched to land at other airports as visibility was reduced to just 1,200 metres due to thunderstorms at Tan Son Nhat.
The airport is expected to serve nearly 24 million passengers during this summer holiday. Airlines have been asked to co-operate with the airport to deal with possible congestion during this peak season.
