Yes, there are multiple flights from Bangkok Intl to Serbia for under ฿ 26,949. The cheapest flight booked recently is on Aeroflot for just ฿ 24,523, but on average you can expect to pay ฿ 135,043.
New policies can now be found on Etihad Airways to help keep travellers safe while flying. New policies for travellers booking flights from Bangkok Suvarnabhumi to Serbia include masks being provided and required on board, daily cleaning and sanitisation, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially-distanced seating (for a limited time). Keep in mind that policies will vary by airline.
Due to the rapidly changing circumstances due to COVID-19, airlines like Aeroflot, Etihad Airways, and SWISS flying from Bangkok Suvarnabhumi to Serbia have implemented new flexible cancellation policies.
There are no direct flights from Bangkok Intl to Serbia, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
When booking a flight from Bangkok Intl to Serbia, you may want to consider flying on Etihad Airways, SWISS or Austrian Airlines as they are the most popular for this route.
Emirates, Aeroflot, and Lufthansa can get you from Bangkok Intl to Serbia in just under 16h 45m. Your travel time can differ by up to 55m. Both multi-stop and direct flights can be found to your destination and back.
Flying on Aeroflot is currently your cheapest option to Serbia, with prices starting at ฿ 24,524. Additional return tickets that might be worth considering are offered by Etihad Airways and Emirates, with the lowest prices starting at ฿ 26,320 and ฿ 35,483, respectively.
฿ 14,433 is the cheapest one-way deal found within the past few days, from Emirates. You may also be able to find cheap deals on Lufthansa, with prices from ฿ 17,517.