By air plane you will arrive at:

Airport Split - 130 km, take motorway and Adriatic highway, transfer 1.5-2 hours
Airport Dubrovnik - 112 km, take Adriatic highway to the north pass historic Dubrovnik and drive another 1.45 minutes approx.
Airport Zadar - 235km, take motorway and Adriatic highway, transfer 2.5 hours

By Car
Via Motorway A1 you arrive from the direction of Zagreb to Šestanovac exit drive 45 kilometres via scenic Adriatic Highway before you reach Zaostrog.