Ferries from Ios to Milos can peak at up to 3 daily sailings, Sailing frequency typically peaks in the summer months, with approximately 7 departures offered each week. While schedules may be reduced from Ios to Milos in other seasons, ferry services are often still available.

Ferry travel from Ios to Milos on average typically takes 3h 15m. The earliest ferry usually leaves from Ios at 05:00, arriving to Milos at 08:40 The latest ferry departs at 19:35 and arrives at 23:40.