Closest Airports:
Pula ( 50 km )
Rijeka ( 120 km )
Ljubljana ( Slovenië, 170 km )
Zagreb ( 250 km )

Flight Schedules departing from Belgium and the Netherlands:

Pula 

Charleroi with Ryanair on Monday and Tuesday
Brussel / Zaventem with Tui on Wednesday and Saturday
Amsterdam with EasyJet op on Wednesday and Saturday 

Rijeka
Eindhoven with Transavia on Thursday and Sunday

Ljubljana
Charleroi with Wizz Air on Monday en Friday
Zaventem with Brussels Airlines: Daily except on Saturday

Zagreb
Brussel with Croatian Airlines : Daily
Charleroi with Ryanair on Wednesday and Sunday
Amsterdam with KLM / Croatian Airlines: Daily