Thai AirAsia plans to increase the frequency of its Bangkok Don Mueang-Ho Chi Minh City service from twice to thrice daily on 16 November.
The low-cost carrier uses Airbus A320 aircraft on the route.
Schedules in Innovata show that it is the only operator on the Bangkok Don Mueang-Ho Chi Minh City route.
Don Mueang is Bangkok's secondary airport. All of AirAsia's affiliates that serve Bangkok transferred to Don Mueang from the main Suvarnabhumi airport on 1 October.