It’s a big step considering the history of hostility between Dubrovnik and Serbia that began with the 1991 bombing of Dubrovnik. Old wounds have healed however, as evidenced by the desire of Serbians to travel Dubrovnik–and the desire of Dubrovnik people to receive them.
To serve this new sector of the Dubrovnik tourist market, JAT airways (Serbia’s national carrier) has announced a new twice a week service between Belgrade and Dubrovnik that will run from mid-June to mid-September.
Booking has not yet opened but prices should be most reasonable.
Read more about flights to Dubrovnik.

