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

Ferry travel from Alonnisos to Thessaloniki on average typically takes -. The earliest ferry usually leaves from Alonnisos at -, arriving to Thessaloniki at - The latest ferry departs at - and arrives at -.