Found Business Promo fares BKK-USA through end of schedule for about 100,000 THB round trip. I got straight into Atlanta and back to BKK for October-December at $3100 all-in. Not sure which other destinations in USA are available or the pricing, so have a look around. Some limited seats on certain flights. To get the lowest fare, I took an extra long layover at DOH and will stay in the airport hotel (at my own cost).