Hello, first time posting. I never been to Thailand so all this is a learning process. I bought a one way ticket to Thailand and plan to use miles to come home to USA. My question is , I know we get 60 days and a 30 day extension. I don't know how long I am staying. May be 30, 60 or 90 days. Do I need a return trip to enter? And if so is it best to set it for 60 days or 90 days? What's my best way to handle this? Like I said, I am new to all this. Any advise is appreciated.