Hello all, my mother-in-law (U.S. passport) will be flying to Bangkok at the end of the year to be with us for the birth of our second child. She plans to stay for three weeks. What does she need to provide Immigration at Suvarnabhumi Airport to attain a 30-day visa exemption?
TLDR : Answer Summary
To attain a 30-day visa exemption at Suvarnabhumi Airport, your mother-in-law will need to provide her U.S. passport, which must be valid for at least six months from the date of entry. She should also have a return ticket or proof of onward travel within 30 days, and potentially evidence of sufficient funds for her stay.