Thailand was among the first countries in Asia to reopen for foreign arrivals, and it is seeing a slow recovery, including new hotels touting longer stays for individual travellers.

In the first 10 months of 2021, Thailand saw 106,117 foreign tourists, a drop from 6.7 million in 2020. Before the pandemic, Thailand saw about 40 million visitors a year.

Hospitality firms like Asset World Corporation Pcl, which opened its 19th property this month, saw...