Getting to Sai Tai Bus Terminal is usually a discomfort. There's no general public transport except for buses, which can be really hard to determine. A taxi with the Nana place downtown will cost about two hundred baht which includes suggestion, but may choose one hour or more according to https://johsocial.com/story9421979/the-definitive-guide-to-sone-229-%E0%B8%8B-%E0%B8%9A%E0%B9%84%E0%B8%97%E0%B8%A2