Tinos is very accessible.  You can arrive, either by landing at the airport of Myconos and then travel by boat from the port of Myconos to Tinos for a duration of 30 minutes, or by landing at the Athens International airport, travel by taxi or bus to Rafina Port  and from there by a speed boat in 2 hours (4 hours by a ferry).

Multiple choises of boat itineraries are also offered  in order to visit some other neighbouring islands from Tinos.

The link below gives you timetables and information of the boats’ itineraries

https://www.vrisko.gr/dromologia-ploion/rafina/tinos/

A car rental will be also needed in order to visit Tinos.  The link below will help you to choose a car rental agency :

https://www.rentaldeals.gr/

https://www.vrisko.gr/dir/enoikiaseis-aytokiniton/tinos/