Agios Konstantinos is a mainland ferry port in Central Greece used for seasonal passenger connections to the Sporades islands. Ferry services from the port have linked the Greek mainland with Skiathos, Skopelos and Alonissos.
Port overview: Agios Konstantinos is primarily a seasonal Sporades gateway rather than a year-round ferry hub. Operators, operating periods and service patterns have changed between seasons, so current schedules should be confirmed before travel.
Last checked: 7 September 2026.
Ferry network from Agios Konstantinos
Agios Konstantinos serves as one of the mainland gateways to the northern Sporades. The principal island connections associated with the port are Skiathos, Skopelos and Alonissos.
Unlike larger Greek ferry hubs such as Piraeus or Volos, Agios Konstantinos does not have a dense year-round passenger network. Its role is mainly seasonal, with ferry activity concentrated around periods when Sporades services are scheduled.
The operator, frequency and exact destinations can change from one season to another. FerryLines therefore treats the Agios Konstantinos-Sporades network as seasonal and checks each operating period separately.
Passenger ferry routes from Agios Konstantinos
| Route | Status | Network role |
|---|---|---|
| Agios Konstantinos-Skiathos | Seasonal | Mainland connection with the westernmost principal island of the Sporades |
| Agios Konstantinos-Skopelos | Seasonal | Mainland connection with Skopelos as part of the Sporades network |
| Agios Konstantinos-Alonissos | Seasonal | Mainland connection with the eastern part of the principal Sporades island chain |
Seasonal timetables can differ substantially between years. A route associated with Agios Konstantinos historically or during a previous summer should not automatically be assumed to operate on a particular travel date.
Agios Konstantinos-Skiathos ferries
Skiathos is normally the first major Sporades destination reached by services sailing from Agios Konstantinos. The route provides a direct connection between Central Greece and the island without requiring passengers to travel first to another mainland ferry port.
Services are seasonal and the number of departures, operating dates and vessels used can change between years.
Agios Konstantinos-Skopelos ferries
Seasonal ferry services from Agios Konstantinos can also continue to Skopelos. These sailings may form part of a multi-stop Sporades service rather than operating as a completely separate point-to-point route.
Skopelos has more than one ferry harbour used by scheduled services, so the exact arrival point should always be checked when travelling to the island.
Agios Konstantinos-Alonissos ferries
Alonissos is the easternmost of the three principal Sporades islands commonly associated with services from Agios Konstantinos. A sailing may call at Skiathos and Skopelos before continuing to Alonissos.
The calling pattern depends on the timetable in operation, so not every departure from Agios Konstantinos should be assumed to serve every Sporades island.
Agios Konstantinos ferry port
The ferry harbour lies beside the town of Agios Konstantinos on the North Euboean Gulf in Central Greece. It is considerably smaller than Greece’s major ferry hubs and is focused on regional connections rather than a large national or international route network.
The port’s location gives travellers from Central Greece and the Athens region another possible mainland gateway to the Sporades when seasonal services are operating.
Seasonal ferry operations
Seasonality is one of the most important characteristics of Agios Konstantinos as a ferry port. Connections with the Sporades should not be treated as year-round unless a current operator timetable specifically confirms this.
The operator structure has also changed over time. Magic Sea Ferries has operated Agios Konstantinos-Sporades services in recent seasons, while plans by Olympian Ferries to operate the corridor in 2025 were postponed before the announced start of service.
This makes current verification particularly important. FerryLines separates routes that are operating in a confirmed season from services that have merely been announced, operated historically or appeared in older ferry databases.
Passenger and vehicle access
The type of passenger and vehicle access available from Agios Konstantinos depends on the vessel and operator serving the port in a particular season.
Where a vehicle-carrying ferry is scheduled, cars may be accepted alongside ordinary passengers. Vehicle capacity, foot-passenger access and check-in requirements should nevertheless be confirmed against the timetable and booking conditions for the specific sailing.
Alternative mainland ports for the Sporades
Agios Konstantinos is not the only mainland gateway to the Sporades. Depending on the season, travellers may also find services from Volos, Mantoudi and other Greek ports.
- Volos – one of the principal mainland gateways for ferries to Skiathos, Skopelos and Alonissos.
- Mantoudi – an Evia departure point with connections to the Sporades.
- Thessaloniki – has been used for seasonal connections to the Sporades in some summer schedules.
The best alternative depends on the island, travel date, departure point on the mainland and timetable available for that season.
How Agios Konstantinos fits into the Greek ferry network
Agios Konstantinos is best understood as a regional mainland gateway rather than a major national ferry hub. Its principal ferry role is connecting Central Greece with the Sporades when seasonal services operate.
This gives the port a different function from larger hubs such as Piraeus and Volos. Agios Konstantinos adds another mainland access point to the Sporades network, but its usefulness depends strongly on the timetable operating in a particular season.
Within the wider FerryLines structure, Agios Konstantinos forms part of the Greek ferry network and the wider Eastern Mediterranean ferry region.
Explore ferry connections from Agios Konstantinos
- Agios Konstantinos-Skiathos – seasonal mainland connection to Skiathos.
- Agios Konstantinos-Skopelos – seasonal connection with Skopelos.
- Agios Konstantinos-Alonissos – seasonal connection with Alonissos.
- Volos – alternative mainland gateway to the Sporades.
- Mantoudi – alternative gateway from Evia to the Sporades.
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Sources and verification
Route status and recent service history were checked against ferry operator information and other current primary sources relating to Agios Konstantinos and Sporades ferry services.
Agios Konstantinos is particularly sensitive to seasonal timetable and operator changes. FerryLines therefore distinguishes confirmed current services from planned, postponed, historic and previous-season connections and does not assume that a ferry operating in one summer will automatically return in the next.
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