Yes, there are multiple flights from Thailand to Missoula for under ฿40,779. The cheapest flight booked recently is on Japan Airlines for just ฿40,590, but on average you can expect to pay ฿46,268.
There are no direct flights from Thailand to Missoula, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
Departing from Thailand to Missoula will take you 21h 15m. This flight may include one or multiple stops.
Japan Airlines, at ฿40,591, was found to be the cheapest airline from Thailand to Missoula.Alternate airlines flying return to your destination include Emirates and Qatar Airways.