You will need to take the flight to Singapore first and then take the ferry from Singapore to Bintan island.
Mozaic Ferry Lines, reference schedule:
Valid from Saturday to Thursday :
Singapore → Bintan, Indonesia | 9.00am | 4.10pm | |
Departing Tanah Merah Ferry Terminal | |||
Arriving Bintan Lagoon Terminal |
Bintan, Indonesia → Singapore | 1.00pm | 5.10pm | |
Departing Bintan Lagoon Terminal | |||
Arriving Tanah Merah Ferry Terminal |
Valid on Fridays :
Singapore → Bintan, Indonesia | 9.00am | 4.10pm | |
Departing Tanah Merah Ferry Terminal | |||
Arriving Bintan Lagoon Terminal |
Bintan, Indonesia → Singapore | 11.45am | 5.10pm | |
Departing Bintan Lagoon Terminal | |||
Arriving Tanah Merah Ferry Terminal |