The on-time performance record of Vietnam Airlines, Vietjet Air, Jetstar Pacific and Vasco in October was 18,392 flights, or 89.4 per cent of the total flights.
The punctuality rate for the national flag carrier, Vietnam Airlines, was 90.1 per cent, with 9,141 flights being on time, out of the total 10,145 flights it operated during the month.
Meanwhile, the rate of low-cost airline Vietjet was 88.6 per cent this month, with 6,559 out of a total of 7,399.
Jetstar Pacific reported a punctuality rate of 84.9 per cent, with 1,979 flights out of its total 2,330, while Vasco’s rate was highest among the four airlines, at 98.9 per cent, with 1,013 out of its total 1,024 flights in the month. 

Domestic airlines must offer passengers compensation when their flights are canceled or delayed.

According to CAAV, late return of planes was the main cause of delays and cancellations.
Faults on the part of the airlines themselves were also blamed for delays in arrival. Other reasons for delays and cancellations included airports’ limited infrastructure and services, flight management and operation and weather and technical issues, CAAV said. 
According to Circular No. 27/2017/TT-BGTVT dated August 25, 2017 of the Ministry of Transport (MoT), the airlines must inform passengers when the flights will be delayed for 15 minutes or more from November 1.
Under the circular, the airlines must also offer passengers compensation when their flights are canceled or delayed, according to the Ministry of Transport (MoT).
The MoT regulates different compensation levels for domestic and international flights based on the distance of the flight. Accordingly, the compensation rate for cancellation, delay on domestic flights is VND200,000 (US$8.81) per passenger on routes less than 1,000 km, and VND400,000 (equivalent to US$17.62) for routes from 1,000 km and over.
For international flights, the compensation rate is $25 per passenger on a flight less than 1,000 km and $150 on a flight over 5,000 km. The compensation can be made in cash or via transfer to the passenger’s banking account.
At the same time, the airlines must serve food for passengers depending on the duration of delayed and canceled flights. Specifically, the airlines must provide passengers drinks for a flight delayed for two hours, food for three hours, and accommodation for a delay of six hours or more on the day (for flights from 7 am to 10 pm), in accordance with the actual conditions of the airport.
In case of a delay of more than six hours at night (from 10 pm to 7 am), the airline shall arrange sleeping and resting places, in accordance with local conditions or a flexible method, if agreed by the passenger. At the same time, the airline is responsible for converting passengers’ journeys within the scope of their service to help passengers arrive at their destinations as quickly and conveniently as possible.