Here You can find a list of airlines which operated in Dubrovnik airport.
Rome Fiumicino - Formosa Airlines
Split - CroatiaAirlines
Zagreb - CroatiaAirlines, Lufthansa, Turkish, LOT, Austrian
Moscow Domodedovo - Ural
Barcelona El Prat - QatarAirways, Formosa Airlines, Iberia
Munich - CroatiaAirlines