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waypoints / 🇬🇷 GR / Kythnos – Thirasia Timings are not live · Documented
Route · GR

Kythnos to Thirasia

1 operator run this water, from 3 h 00. Thirasia has an airport 13 km from the quay, so this is a crossing you can make one way and fly the other.

Every way across

One row per operator and speed. Where a service is sold as fast and its average does not clear 45 km/h, the word appears in quotation marks — the boat is fast craft, the crossing is not.

Operator not recorded Kythnos → Thirasia 134 km crossing 3 h 00 rate not held 45 km/h average
SeaJets Kythnos → Thirasia 134 km crossing not held rate not held

Other ways to reach Thirasia

If this crossing does not suit, these quays also reach Thirasia without a change. It is the question a single-route page cannot answer about itself and an atlas can.

Ios – Thirasia 15 min Blue Star Ferries
Sikinos – Thirasia 3 h 00 SAOS Ferries
Anafi – Thirasia not held SAOS Ferries
Athens (Rafina) – Thirasia not held Blue Star Ferries
Folegandros – Thirasia not held SAOS Ferries
Kea – Thirasia not held SeaJets
Lavrio – Thirasia not held SeaJets
Mykonos – Thirasia not held Blue Star Ferries
Naxos – Thirasia not held Blue Star Ferries
Paros – Thirasia not held Blue Star Ferries

And other ways to reach Kythnos

Serifos – Kythnos 40 min Aegean Sea Lines, Cyclades Fast Ferries
Lavrio – Kythnos 1 h 10 Blue Star Ferries, Hellenic Seaways
Sifnos – Kythnos 1 h 10 Aegean Sea Lines, Cyclades Fast Ferries
Kea – Kythnos 1 h 25 Blue Star Ferries, Hellenic Seaways
Piraeus-Athens – Kythnos 1 h 35 Aegean Sea Lines, Cyclades Fast Ferries
Kimolos – Kythnos 1 h 40 Aegean Sea Lines, Blue Star Ferries
Milos – Kythnos 2 h 15 Aegean Sea Lines, Blue Star Ferries
Syros – Kythnos 2 h 40 Blue Star Ferries, Hellenic Seaways
Anafi – Kythnos 3 h 00 SeaJets
Andros – Kythnos 3 h 00 Blue Star Ferries, Hellenic Seaways

Where else these quays go

Also from Kythnos

Anafi · Andros · Folegandros · Ios · Kea · Kimolos · Lavrio · Milos · Mykonos · Naxos · Paros · Piraeus-Athens · Santorini (Thira) · Serifos

Also from Thirasia

Anafi · Athens (Rafina) · Folegandros · Ios · Kea · Lavrio · Milos · Mykonos · Naxos · Paros · Piraeus-Athens · Santorini (Thira) · Sifnos · Sikinos

Which months this runs

Season not heldwe can say when we looked, not which months run

Our records for the Kythnos–Thirasia crossing were read on 11 August 2026 and describe the network as it ran that week. We hold no month-by-month variation, so this page cannot tell you whether a crossing runs in February.

If you are travelling well outside August 2026, confirm with the operator before you plan around it.

What we do not know

No fares. Not for this crossing, not for any crossing, not for any mode.

No departure times. No rate is held for this pair either, so we cannot say how often it runs.