Yes, there are multiple flights from Bangkok to Appleton for under ฿ 44,842. The cheapest flight booked recently is on United Airlines for just ฿ 41,913, but on average you can expect to pay ฿ 46,248.
There are no direct flights from Bangkok to Appleton, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
We forecast the temperature to be around the 36 °Cs in April, on average. The temperature in Appleton is generally colder than in Bangkok. Book flights in a timely manner in correlation to your departure date.
Departing from Bangkok to Appleton will take you 23h 46m. Both multi-stop and direct flights can be found to your destination and back.
United Airlines, at ฿ 41,913, was found to be the cheapest airline from Bangkok to Appleton. An alternate airline flying to your destination would be KLM.