Yes, there are multiple flights from Thailand to Papua New Guinea for under ฿ 69,044. The cheapest flight booked recently is on Multiple Airlines for just ฿ 68,083, but on average you can expect to pay ฿ 81,592.
Airlines globally have implemented additional safety measures to accommodate you. Philippine Airlines is one of them. Airline carriers are regularly disinfecting and sanitising their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially-distanced seating (for a limited time) will work towards keeping travellers safer while flying from Thailand to Papua New Guinea. Policies will vary by airline.
One of the carriers operating flights from Thailand to Papua New Guinea that may be offering flexible change policies is Philippine Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.
There are no direct flights from Thailand to Papua New Guinea, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.