Originally Posted by
Earthman
Its to and from USM, so it’s domestic
Domestic flights at BKK (Suvarnabhumi) arrive at and depart from the A and B gates. Your connection times look doable, but no dawdling on the 90 minute connection. It's a huge, spread out airport. Long walks are the norm. And, not unlike DOH, the airport is crowded 24×7.