Ferries services to Ios operate from two ports on the mainland, Piraeus and Rafina, both a bus ride from Athens International airport. Over the main holiday season, ferries to Ios run quite frequently, up to three ferries each day with a journey time of three to eight hours depending on the type of ferry.
Blue Star Ferries has three crossings weekly from Piraeus and daily sailings from Rafina, both between six and eight hours journey time. Blue Star also has daily sailings to Mykonos (four hours) and three sailings weekly to Santorini (one hour) as well as 10 crossings weekly to Naxos and Paros (one to two hours).
Hellenic Seaways operates routes twice daily to Mykonos and Paros, daily services to Naxos and on to Piraeus, as well as daily sailings to Crete (about three hours) and three times weekly to Santorini.
NEL Lines operates routes to many other islands in the Cyclades including Anafi, Folengandros, Kea, Kimolos, Lavrio, Milos, Mykonos, Naxos, Paros, Santorini and Syros.
Faster services to Piraeus, Mykonos and Santorini are offered by Sea Jets which also runs high speed ferries daily to Crete, Folengandros, Milos, Naxos, Sifnos and Tinos.
As if that weren't enough Ventouris Ferries also has three sailings weekly to Folengandros, Piraeus, Serifos, Sifnos, Sikinos and Santorini.
Regular buses connect the port and the town but is not too far to walk the wide stone steps up the hill to the Chora if you are travelling light. A tourist office (tel: 091028) is at the end of the harbour and opens about 30 minutes before boat sailings.
Ios island caiques (water taxis) run daily between Yialos and the beach at Manganari via Mylopotas beach during the summer months.