Thai Airways International plans to raise frequencies on three international services during its summer schedule.
It will raise the Bangkok-Perth service from three to seven times weekly, while the seasonal Bangkok-Phuket-Perth service will be operated thrice weekly, up from twice weekly, says the airline.
Changes on its services to Perth will occur on 16 June and will be operated by Airbus A330-300 aircraft.
The Bangkok-Bodhgaya-Varanasi service will increase from four times weekly to daily on 1 October. The additional service will use Boeing 737-400 aircraft.
The airline adds that it raised the Bangkok-Denpasar frequency from five to seven times weekly on 31 March, using Boeing 777-200 aircraft.