Yes, there are multiple flights from Thailand to Leeds for under ฿ 32,996. The cheapest flight booked recently is on KLM for just ฿ 31,286, but on average you can expect to pay ฿ 40,795.
There are no direct flights from Thailand to Leeds, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
A quick flight from Thailand to Leeds can take about 15h 30m. KLM provides one of the quickest options available for as low as ฿ 50,814.
Flying on KLM is currently your cheapest option to Leeds, with prices starting at ฿ 31,287.