
Domestic surcharges will be US$20, from $25. International surcharges will be $25-$95, from $40-$110, the airline said in a statement.
Siem Riep Airways will also charge $20 for domestic flights from $25, while international flights' surcharges will be $25 from $40.
As oil prices are plunging, Thai Airways International in November further slashed its fuel surcharges by 30 per cent on average, following a 25 per cent cut in October.