From Slavija bus to Belgrade airport, fly to Tehran Imam Khomeini airport, bus to Azadi Square, then taxi to Tehran. 10hrs 51min 177 €. From Slavija bus to Belgrade airport, fly to Tehran Mehrabad airport, then taxi to Tehran. 11hrs 19min 205 €. From Belgrade bus to Niš, bus to Istanbul, then bus to Tehran Beyhaghi Terminal. 2days 06hrs 99 €. From Beograd train to Sofia, train to Stara Zagora, train to Eminönü Ferry Terminal, ferry to Kadikoy, Metro to Kartal Köprüsü, line 251 bus to Pendik, train to Ankara Garı, then train to Tehran station. 4days 18hrs 93 €.
Operators: Nikola Tesla Airport Shuttle Turkish Airlines Aeroflot Lufthansa Austrian Alitalia Pegasus Iran Air Qatar Airways Jat Airways Mahan Airlines Flydubai ATA Airlines Iran Air Tours Iran Aseman Iraqi Airways TAROM Nis Ekspres Sportturist Seiro Safar Serbian Railways (ŽS) Bulgarian Railways (BDZh) Sahir Hatlari Istanbul Ulasim IETT T.C. Devlet Demiryolları