Is it necessary to have a booked exit flight when applying for a 90-day visa to Thailand?

When traveling to Thailand on a 90-day Non-O visa, it is generally not required to have a booked onward flight. Many travelers have successfully entered the country without such proof, though airline policies may vary. While the Thai immigration authorities do not usually demand exit tickets for 90-day visas, some airlines might ask for verification of onward travel during check-in. There are reports from individuals who noted that certain Thai embassies may incorrectly request exit tickets for the visa application process, but this is not a universal rule. Ultimately, for a visa-exempt or tourist visas, onward travel proof is typically required, so travelers should clarify specifics with their airlines and check embassy guidelines before their journey.