The Airports of Thailand (AoT) board of directors has agreed on the need to raise the airport departure tax for both domestic and international passengers by 100 baht (about $3), AoT Chairman Sita Divari said on Thursday.

The departure tax for domestic flights would rise from 100 baht to 200 baht, and from 700 baht to 800 baht for international flights, Sita said.

The increase still needs final approval from aviation and transport authorities.

The new fees would apply at all airports operated by AoT when approved.

The latest attack on tourists' wallets comes on top of the government's move to charge foreigners a new arrival tax at airports and land border crossings.

The government is considering a plan to charge foreigners a 500- baht entry fee from January next year. (1 dollar equals about 31 baht)