Do airlines or Thai immigration require travelers to show a bank statement or cash for entry into Thailand?

While it's rare, travelers have reported that Thai immigration may sometimes ask to see proof of funds, specifically 20,000 baht cash or equivalent. Most users have not been asked for this documentation during their visits, suggesting it is more likely if you have a flagged entry history. Generally, airlines do not ask for bank statements, but some travelers noted they were questioned about having sufficient funds or an onward ticket. Others emphasized the importance of cash over bank statements for entry into Thailand.