If you can accept a longer layover on the way and are looking for some bargain deal from Bulgaria to Thailand you might appreciate this solution from Sofia o Bangkok based on the promotion of Air France-KLM (SkyTeam)!. The cheapest return flights are available from just €297
Flying from: Sofia
Flying to: Bangkok
Airline(s): Air France-KLM
Travel period: February to June or September to November 2021
Book by: 11th of February
Booking sample of cheap Air France-KLM flights from Sofia to Bangkok, Thailand from €297! As per the above sample, in this promo deal, you would depart from Bulgaria to this classic destination in South East Asia via Amsterdam on the 7th of May. Inbound from Bangkok back to Sofia via Paris on the 23rd of May 2021.