Budapest to Sofia by train
Trains link Budapest (Hungary) and Sofia (Bulgaria) through the European rail network. Most journeys take around 5h 15m including one or two connections at major hubs.
Operators on this corridor include MÁV, BDŽ.
Train fares are dynamic — typical range is €53 to €153. Advance-purchase tickets (1–2 months ahead) almost always beat walk-up prices.
Climate footprint: about 9.0 kg CO₂ per passenger by train vs roughly 98 kg by flight — taking the train saves ~89 kg on this distance.