Thai Airways has outlined the network changes planned for its winter schedule, which begins on 27 October.
The carrier will start a thrice weekly Bangkok-Sendai service on 3 December, using Airbus A330-300 aircraft.
It will also up the frequencies on routes to seven destinations. Its Bangkok-New Delhi service will be raised from 11 to 14 times weekly starting 30 September. This will be followed by an increase on the Bangkok-Frankfurt route from 12 to 13 times weekly on 1 October.
From 27 October, the Star Alliance member will add two weekly services on its Bangkok-Chengdu and Bangkok-Nagoya routes, raising their frequencies to seven and 14 times weekly respectively. Its Bangkok-Sapporo service will be operated daily, up from four times weekly.
The carrier adds that its Bangkok-Moscow Domodedovo route will see an increase in frequency from four to six times weekly starting 24 December, while its Bangkok-Singapore service will go up from 32 to 35 times weekly on 1 February 2014.
Thai also plans to up the capacity on services to Japan on 27 October, deploying Airbus A380s to replace Boeing 747-400s.This will cover seven weekly frequencies on the Bangkok-Osaka Kansai and Bangkok-Tokyo Narita routes. With the change, Tokyo Narita will be served twice daily on the A380s.
On the same date, it will also reduce frequencies on the Bangkok-Johannesburg and Bangkok-Rome routes from four to three times weekly, while maintaining a four times weekly Bangkok-Madrid service during the winter schedule, the airline adds.