The biggest nearby town of Split has international airport with several low cost airlines departing from European destinations. it’s also doable to reach Split with the train.
Ferries sail from Split to Supetar on Brač Island (50 min), and Makarska to Sumartin (30 min). A catamaran (passengers only) runs from the island of Hvar to Bol on the Island of Brač.
Brac airport in Bol has seasonal and charter flights.