Yes, there are multiple flights from Thailand to Gainesville for under ฿48,001. The cheapest flight booked recently is on American Airlines for just ฿46,861, but on average you can expect to pay ฿76,652.
There are no direct flights from Thailand to Gainesville, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
Airlines like American Airlines and Qatar Airways fly from Thailand to Gainesville in about 25h 13m. The time it takes to get you to your destination can typically vary by up to 6h 31m. This flight may include one or multiple stops.
American Airlines, at ฿46,861, was found to be the cheapest airline from Thailand to Gainesville. An alternate airline flying to your destination would be Qatar Airways.