Hi, I'm just about to book a 1 way to thailand, then a 1 way from thailand to vietnam on the 60th day will this be acceptable for a 60 day visa
TLDR : Answer Summary
You can book a one-way flight to Thailand and a one-way flight from Thailand to Vietnam for your 60-day visa. It's important to note that immigration will only require proof of leaving Thailand, and the destination of your onward flight isn't a concern. Just be cautious not to overstay your visa, as the day you arrive counts as day one.