This route is operated by Blue Star Ferries, Seajets and Zante Ferries. The quickest crossing is with Seajets and lasts 4 hours and 5 minutes.
The distance from Ios to Piraeus ports by ferry is 200 kilometres, that's about 124 miles or 108 nautical miles. However, the exact distance may depend on the route you take.
You can travel as a foot passenger or with your vehicle on this route.
The cheapest price for a one way crossing by foot in the summer is about 41 euros, and for a car with one person about 139 eurosClick Book Now and use the booking form to get the latest prices and see the real sailing dates for all ferries on the Ios - Piraeus route.
The ferry was on time but the port police were very rude because I ask theme were do I had to wait to board in the ferry
I suggest to be more polite