score:1
After a long search I've found a really simple answer: Rinca island is in a natural park area and it is a no flight zone.
Upvote:4
Your best bet would be to try chartering a private seaplane in Bali and see if they will take you. There are no scheduled flights - you need to fly to Labuan Bajo and take a boat from there if you're not interested in private rental.