Thailand's foreign arrivals fell 3.8% in the first nine months of 2026 compared with the same period last year, bringing total visitors to 23.20 million.
September saw the steepest drop, a 10.5% year-on-year decline.
Malaysia and South Korea were hardest hit, falling 15.2% and 25.4% respectively. China stayed Thailand's largest source market, rising 15.2% to 3.94 million arrivals. Russian visitors slipped 0.1%, while Indian arrivals fell 2.5%.
The University of the Thai Chamber of Commerce (UTCC) projects a 4.5% fall in foreign arrivals for 2026, targeting 31.5 million total. For 2027 the UTCC foresees a rebound to 34 million visitors if direct flights increase and border-checkpoint issues are resolved; best-case 35.44 million, worst-case 32.57 million.
Industry operators urge urgent government action on entry rules and travel costs that undermine Thailand's competitiveness against other Asian destinations.
