Ferries from Kos to Astypalea 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 Kos to Astypalea in other seasons, ferry services are often still available.

Ferry travel from Kos to Astypalea on average typically takes 8h 30m. The earliest ferry usually leaves from Kos at 09:00, arriving to Astypalea at 12:00 The latest ferry departs at 23:50 and arrives at 13:50.