I have been to Thailand twice in the past, one time on a tourist visa and once on the 1-month visa free entry. Both times I had a return ticket.
I am planning my third trip now and I'm planning on going on a tourist visa. However, I will be studying there for 5 weeks (I have emailed the school and they informed me I will not require a student visa since it is only 5 weeks).
Once I finish studying, I plan on finding a job and will then apply for a work visa. Since I plan on staying and returning to my home country, will I be allowed to enter Thailand without proof of a return flight?
My brother travelled to Thailand around 2 years ago on a tourist visa, without a return flight, and then got a work visa. He had no issue getting into Thailand without the return flight, but had a little trouble leaving since that time.