Hello all, and happy holidays. I was wondering what the usual LCC airlines are from tokyo to anywhere in SE Asia. I plan on exploring all of SE Asia so the destination is not that important only the cost in getting there. Only issue is that if my award miles only go as Far as Tokyo(from the U.S.) i wanted to have a backup on getting to SE Asia cheaply. Do flights of $100 or so exist from Tokyo to SIN, BKK, KUL, or any other SE Asian destinations? Any particular airline recs or airfare portals to search?

Edit: Ah, i see the sticky lists some sites. Any specific recommendations still, while i browse the sticky listed websites?