Yes, there are multiple flights from Bangkok Intl to Bulgaria for under ฿ 20,998. The cheapest flight booked recently is on Etihad Airways for just ฿ 20,728, but on average you can expect to pay ฿ 22,857.
Due to the rapidly changing circumstances due to COVID-19, airlines like Emirates and Aeroflot flying from Bangkok Suvarnabhumi to Bulgaria have implemented new flexible cancellation policies.
There are no direct flights from Bangkok Intl to Bulgaria, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
Looking at all options, your cheapest flight can be booked for ฿ 9,366. While the most popular route (Bangkok Suvarnabhumi - Sofia) can be booked for ฿ 20,728 on average our data indicates ฿ 9,366 when flying from Bangkok Intl to Bulgaria
Qatar Airways, Lufthansa, and Emirates can get you from Bangkok Intl to Bulgaria in just under 13h 35m. Your travel time can differ by up to 3h 45m. This flight may include one or multiple stops.
Flying on Etihad Airways is currently your cheapest option to Bulgaria, with prices starting at ฿ 20,728. Additional return tickets that might be worth considering are offered by Lufthansa and KLM, with the lowest prices starting at ฿ 21,268 and ฿ 22,468, respectively.