All of 560,000 room nights in the government's hotel subsidy programme for domestic tourists were booked within four days.
The fifth phase of the "We Travel Together" programme, which provides domestic tourists with a 40% subsidy on hotel rooms, was open for booking on Tuesday.
By 11am on Friday, the "We Travel Together" website showed that the privilege was no longer available.
The Tourism Authority of Thailand (TAT) said on Friday that if tourists and tourism operators would like this scheme to continue, the agency will likely propose its extension to the new government after the election, which has been tentatively set for May 7.
The fifth phase was allocated a budget of 2 billion baht in January and is expected to generate direct income of 9.2 billion baht.
The government started the first phase in July 2020 in a bid to stimulate domestic tourism, as borders were closed because of the Covid-19 pandemic.
The four previous phases of the scheme had a total budget of 27 billion baht for 11.5 million room nights, which generated more than 49 billion baht for the local economy.