Cheap Ferry tickets to Kythnos

What are the most popular routes to Kythnos?

Kea - KythnosAverage priceRUB 858Average duration1h 25mDaily departures1
Andros - KythnosAverage priceRUB 1,460Average duration3h 35mDaily departures1
Siros - KythnosAverage priceRUB 980Average duration2h 5mDaily departures1
Tinos - KythnosAverage priceRUB 1,462Average duration2h 15mDaily departures1