Thailand to allow foreign tourists to extend stay as Covid easesTourists arrive at Suvarnabhumi Airport, Samut Prakan province, on Feb 6, 2022. Foreigners from 18 territories coming to Thailand under the visa on arrival category will be allowed to double their length of stay for up to 30 days, Dr Taweesilp said. Those from more than 50 places that currently get 30 days will be able to stay for up to 45 days. Between Jan 1 and Wednesday, the country gained 176.3 billion baht (US$4.93 billion) in revenue from 3.78 million foreign arrivals. Southeast Asia's second-largest economy expects 8 million to 10 million arrivals this year, above an earlier forecast of 7 million, according to the Ministry of Finance.