Do I need to provide proof of flight purchase for a tourist visa application in Laos for Thailand?

When applying for a tourist visa in Vientiane, Laos, it is typically required to present a travel itinerary showing departure from Thailand. While some users have reported that an onward ticket or proof of stay may not always be required, it is generally safer to provide a booked flight. Suggestions for providing proof include booking a refundable ticket and canceling it later or using a dummy ticket service.