Kythnos - Piraeus Ferry Tickets from €25 | Routes 2026

Kythnos - Piraeus: Ferry tickets and routes

Kythnos is connected by ferry with Piraeus by high-speed vessels and, depending on the season, conventional ferries. Departures take place from Merichas, the island's main port on the western coast.

The lowest passenger fares start from €25 - €31 on selected conventional sailings, while tickets for the summer high-speed service operated by Seajets start from €49.70. Car fares start from €50, with the final price depending on the ferry company, vessel, vehicle length and travel date.

The fastest crossing takes 1 hour and 35 minutes. Conventional ferries can take up to 3 hours and 15 minutes. During August, the main connection is operated by a Seajets high-speed ferry, with daily departures during the peak summer period.

For the current summer route, a midday departure from Kythnos is available at around 12:15, reaching Piraeus after 1 hour and 35 minutes. Passengers should always check the exact departure time shown on their ticket, as operational changes may occur.

Before booking, compare the high-speed service with the conventional departures available on your chosen date. The cheapest ticket does not always correspond to the fastest ferry. Through booktickets.gr, you can check the available options and final fare before payment.

Ferry ticket prices Kythnos - Piraeus

There is a noticeable price difference between high-speed and conventional ferries on this route.

For one adult passenger:

• Lowest fares: from €25 to €31 during several available travel periods
• High-speed ferry with Seajets: from €49.70
• Upgraded seating categories: higher fares depending on the vessel

The €49.70 fare applies to the fast summer option with a journey time of 1 hour and 35 minutes. If price is more important than travel time, it is worth checking the conventional sailings available on your specific date.

Fares are not fixed throughout the year. The final ticket price depends on availability, seat category and any discount the passenger is entitled to receive.

How much does a car ticket cost?

Cars can be transported from Kythnos to Piraeus on ferries equipped with a vehicle garage.

The lowest car fares start from €50. On high-speed ferries, the price for a passenger car is higher, starting from €69.

The final vehicle fare is affected by:

• Vehicle length
• Ferry company
• Type of vessel
• Travel date
• Vehicle category

Champion Jet high-speed ferries operated by Seajets have vehicle garages. Champion Jet 1 can carry up to 200 vehicles, but during periods of strong demand, garage availability may sell out before passenger seats.

Journey duration

Kythnos is one of the Cycladic islands with relatively quick access to Piraeus.

Journey times are:

• High-speed ferry: 1 hour and 35 minutes
• Conventional ferry: 2 hours and 50 minutes - 3 hours and 15 minutes

The time difference is considerable for such a short route. Travellers who want to reach Athens quickly have a clear advantage when choosing the high-speed ferry.

For a lower-cost journey, conventional services are worth considering whenever they are available on the selected travel date.

Frequency and weekly departures

The number of sailings changes significantly throughout the year. During the peak summer period, Kythnos can have up to 7 departures per week to Piraeus. In August, a daily high-speed connection is operated by Seajets.

At the beginning of August, the route from Merichas is listed with a departure at 12:15, sailing directly towards Piraeus.

During other months, the number of weekly departures is lower and services may be operated by different companies or vessels. For this reason, checking a specific travel date is more useful than relying only on the general weekly frequency of the route.

Ferry companies and vessels

The ferry companies serving the route are:

• Seajets
• Aegean Sea Lines
• Fast Ferries

The available options are not the same during every period of the year.

The high-speed connection is operated by Seajets. Depending on the travel date and the operational allocation of the fleet, a vessel from the Champion Jet series or Superrunner Jet II may operate the route.

Champion Jet 1 is a high-speed passenger and vehicle catamaran. It can carry up to 1,000 passengers and 200 vehicles and offers a Café Bar, shop, Wi-Fi, electronic ticketing, lift and facilities for passengers with reduced mobility.

On conventional services during other periods, vessels such as Anemos of Aegean Sea Lines and Dionisios Solomos of Fast Ferries have been used.

Direct ferries and intermediate stops

The summer Kythnos - Piraeus connection is convenient because, after leaving Merichas, the high-speed ferry continues to Piraeus without another island stop.

Before reaching Kythnos, the same ferry may have called at:

• Milos
• Sifnos
• Serifos

For passengers boarding in Kythnos, however, the final leg to Piraeus is direct.

This also helps keep the journey short, since no additional time is required for passenger and vehicle movements at another island after Merichas.

Departure port in Kythnos

The main passenger port of Kythnos is Merichas.

It is located on the western coast of the island and is the main ferry gateway for connections with Piraeus, Lavrio and other islands.

Around the port, travellers can find restaurants, cafés, accommodation and basic services that may be useful before departure.

If you are travelling with a car, arrive at the boarding area early enough. Traffic around Merichas increases during summer, and vehicles must enter the ferry garage according to the instructions of the crew.

Arrival at Piraeus port

The ferry arrives at the central port of Piraeus.

From there, passengers have access to:

• Metro
• Electric railway
• Buses
• Taxis
• Connections to the airport
• Central Athens

The arrival or departure gate should not be taken for granted. Piraeus is a large port and gates can change.

Check the information shown on your ticket or the ferry company's latest instructions on the day of travel.

Seats, cabins and onboard facilities

On the fast 1 hour and 35 minute crossing, numbered seats are the main accommodation option.

The Seajets vessels that may operate this route offer, depending on the ferry:

• Numbered seats
• Café Bar
• Wi-Fi
• Shop
• E-ticket
• Lift
• Accessible facilities for passengers with reduced mobility
• Areas or dedicated facilities for pets
• Vehicle garage

Sleeping cabins are not a main feature of the current high-speed service. On a journey lasting less than two hours, the seating category is more relevant than booking a cabin.

Conventional ferries operating during other periods may offer different seating and accommodation categories.

Discounts and offers

Available discounts depend on the ferry company and must be declared correctly during the booking process.

For children and infants, age-based discounts are available. With Seajets, children up to 5 years old may travel free of charge in specific categories, while children aged 5 to 10 can receive a 50% discount.

Students attending Greek public universities can receive a 50% discount in the Seajets economy category, provided they present the required student identification.

Large and three-child families are also eligible for special fares. Seajets offers a 50% economy-class discount for eligible large families and a 30% discount for eligible three-child families, subject to the required supporting documents.

Discounts cannot be combined. Passengers must carry the document that proves their eligibility for the reduced fare.

What to check before booking

There are three points worth checking carefully before paying for this route.

First, the fare. A ticket starting from €25 does not mean that the same price will be available on the same date as the €49.70 high-speed service.

Second, the journey time. The difference between 1 hour and 35 minutes and 3 hours and 15 minutes is significant for a short return journey to Attica.

Third, the vehicle. If you are returning with a car in August, check garage availability before organising the rest of your trip.

Return route Piraeus - Kythnos

Fast summer connections are also available for the reverse journey from Piraeus to Kythnos.

During August, a Seajets departure operates from Piraeus at 15:00, arriving at Merichas at 16:35.

The journey takes 1 hour and 35 minutes.

This makes it possible to organise a short trip from Athens to Kythnos without spending several hours onboard.

Alternative ferry routes

Lavrio is the main alternative to Piraeus for travelling to and from Kythnos.

The Kythnos - Lavrio ferry route has a much larger number of summer departures and is served by both conventional and high-speed ferries. The fastest crossing starts from 1 hour and 10 minutes.

Choosing Lavrio can be useful when:

• There is no availability on the sailing to Piraeus
• You are travelling with a car
• You want a wider choice of departure times during the day
• Your final destination is in eastern Attica
• A lower fare is available on your travel date

Kythnos also has ferry connections with Serifos, Sifnos, Milos, Kea and, on selected days, Syros.

Find all the routes

How to book Kythnos - Piraeus ferry tickets

Before completing your payment, check:

• Travel date
• Departure time
• Total journey duration
• Ferry company
• Vessel
• Seat category
• Passenger fare
• Vehicle fare
• Garage availability
• Eligible discount
• Change or cancellation conditions

Through booktickets.gr, you can compare the options available for your travel date before completing your booking.

Do not choose a sailing only according to the first price you see. On the Kythnos route, the difference between high-speed and conventional ferries can have a considerable impact on both the fare and the time you reach Attica.

Useful travel tips

• For the fastest journey, choose the 1 hour and 35 minute connection.
• If you are travelling with a car in August, book early.
• Arrive at Merichas in good time, especially when travelling with a vehicle.
• Check the exact vessel before departure, as ferry substitutions can take place.
• Do not assume that the arrival gate at Piraeus will always be the same.
• Keep your electronic ticket available on your phone.
• Declare your discount when booking and carry the relevant supporting document.
• If you cannot find availability for Piraeus, check the Kythnos - Lavrio route first.
• If you have a flight on the same day, leave enough time to travel to the airport.

Frequently asked questions

How much is a ferry ticket from Kythnos to Piraeus?

The lowest fares start from €25 - €31 on selected conventional departures. The summer high-speed ferry operated by Seajets starts from €49.70.

How much is a car ticket?

Car fares start from €50 and increase depending on the ferry company, vessel and vehicle category. On high-speed services, the fare can reach close to €93.40.

How long is the journey?

The crossing takes from 1 hour and 35 minutes by high-speed ferry to 3 hours and 15 minutes by conventional ferry.

Which port in Kythnos do ferries depart from?

Ferries depart from Merichas, the main passenger port of Kythnos.

Which is the fastest ferry?

The fastest connection is the Seajets high-speed ferry, with a journey time of 1 hour and 35 minutes.

Are there direct ferries?

Yes. On the summer route, after departing from Merichas, the ferry continues directly to Piraeus.

Can I take a car on the ferry?

Yes. The high-speed ferries serving the route have vehicle garages and can carry cars and motorcycles.

Are cabins available?

Sleeping cabins are not a main option on the high-speed 1 hour and 35 minute journey. Passengers mainly choose between the available seating categories.

Which ferry companies operate the route?

The ferry companies operating this route are Seajets, Aegean Sea Lines and Fast Ferries. The operating company and frequency vary depending on the season. During August, the daily fast connection is operated by Seajets.

Is there an alternative port in Attica?

Yes. Lavrio has frequent ferry connections with Kythnos and is the main alternative when there is no suitable availability or departure time for Piraeus.

How do I use Web Check-in?

Passengers can now board the ferry directly without waiting at the port ticket office by completing Web Check-in through the booking email from 2 hours up to 48 hours before departure.

• Web Check-in Seajets

Payment security

Bookings through booktickets.gr are completed in a secure online transaction environment.

Before payment, the ferry company, vessel, seat category, passenger details, vehicle, applied discounts and total booking value are displayed for review.

Visa, Mastercard and Maestro credit and debit cards are accepted, together with IRIS payments through a bank ePOS system. Transaction details are handled in accordance with the applicable security framework for card payments.

After successful payment, the booking confirmation and instructions for the electronic ticket are sent by email.

Content editing: booktickets.gr

Last updated: August 2026