Bangkok airport!!?

I don't know where you're from. There are international airlines that fly directly to and from Phuket, so you don't have to waste time for domestic flights. My friend from Berlin can go to and from phuket without landing at BKK airport. Those airlines have direct flight from Europe or America which is very convenience for tourists. If this is impossible for you, try Air Asia whose domestic flights still depart from Suwannapoom.