Yes, there are multiple flights from Thailand to Tawau for under ฿ 14,972. The cheapest flight booked recently is on Malaysia Airlines for just ฿ 13,056, but on average you can expect to pay ฿ 13,086.
There are no direct flights from Thailand to Tawau, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
While some choose either Bangkok Don Mueang Intl - Tawau or Koh Samui - Tawau, Bangkok Suvarnabhumi - Tawau is the most popular route from Thailand to Tawau.
A quick flight from Thailand to Tawau can take about 20h 55m. Malaysia Airlines provides one of the quickest options available for as low as ฿ 13,056.
Currently priced at ฿ 13,056, Malaysia Airlines will fly you from Thailand to Tawau and back. In addition to Malaysia Airlines, many other airlines offer competitively priced options for your trip.