Ios - Kythnos
Ferries to Cyclades Islands
Ios - Kythnos
Ferries to Cyclades Islands

We offer a fast way to compare ferry tickets and costs across the world to make your choice smooth sailing. Check out our Special Offers page for discounts on select routes and operators. Remember to book early for the best prices and options!
Yes, Direct Ferries offers a wide range of discounts all year round. When searching for ferries, senior discounts will be automatically applied if they are available. Just select your age range from the passenger options.
Students and graduates can get a 5% discount on ferry tickets. To take advantage of the discount, you need to register with and check out our partner Student Beans and confirm your student or graduate status. You will then receive a discount code which can be entered during the payment process.
Resident discounts are available on a variety of Spanish and Italian ferry routes. Just click on the "Residents" option when this is displayed. The discount is automatically applied to the price. Bear in mind that proof of registration or an identity card with the correct address must be shown at check-in.
Travel requirements can vary depending on the route, so make sure to check what documents you'll need before sailing. In most cases, a valid passport is required when travelling from Ios to Kythnos, along with any necessary visas or national ID cards. Requirements may differ based on your nationality and the destination country’s regulations. To avoid delays at check-in, you can find helpful information for your journey in our Check-in, Travel Documents & Tickets guide.
To book your ferry tickets, simply enter your departure and arrival ports along with your preferred travel date to see all available options and prices. You can also view alternative routes and sailing times, helping you find the best deal for your needs.
Keep an eye out for early booking discounts and special ticket options, such as upgrades or flexi-tickets that let you change or cancel your booking. To ensure a smooth sailing experience, make sure you enter all the required details correctly, including the number of passengers and your vehicle specifications.
Once you’ve completed your booking, you’ll receive a confirmation email. How your boarding pass is issued and collected depends on the ferry operator you’ve booked with.
Some ferry operators issue your boarding pass as soon as your booking is confirmed, while others require you to check in at the port. Some may also offer online check-in, which can be completed easily via the Direct Ferries app, where available.
The ticket desks are usually located near the ferry terminals. To avoid any delays at the port, we’d recommend allowing some extra time to collect your tickets and to check in.
During check-in, you must show your email confirmation, as well as an official photo ID, such as a passport or identity card. You might also be asked to provide documentation for your pet (vaccines, pet insurance, etc.) or proof of residence, if you have booked your ticket with a resident discount.
There could be several reasons why there are no departures from Ios to Kythnos on your chosen date. This could be due to a temporary timetable change, limited availability or seasonal timetable variations. We recommend checking alternative dates and routes to find a suitable crossing.
The best time to book a ferry from Ios to Kythnos is generally as early as possible. Booking in advance can help you secure the best available prices, as well as a wider choice of departure times and cabin or seating options.
We recommend booking at least a few weeks ahead to take advantage of the best offers. Keep in mind that prices can vary depending on the season and availability.
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| Ios - Kythnos Ferry Route Prices |
|---|
| Ios - Kythnos Ferry Route Summary | |
|---|---|
| Origin | Cyclades Islands |
| Destination | Cyclades Islands |
| Distance | 0 Nautical Miles |
* Prices subject to change, pricing is taken from last 30 days, last updated 1 August 2026.
Forming one of the Cyclades group of islands, the Greek island of Ios is located in the Aegean Sea and lies around mid way between the island of Naxos and the island of Santorini. The island's terrain is characterised by hills and cliffs that lead down to the sea on most sides of the island. Located on the north west coast is the island's port which is only a short distance from the village of Chora. The trip between Chora and the port can be made on foot which will take you along a steep donkey path, and takes around 15 minutes. The village is characterised by narrow paths and streets most of which have now been taken over by bars, restaurants, shops and night clubs to cater for tourists.
There are ferries from the island's port to Piraeus and Rafina with a crossing time of between 4 1/2 hours and 8 hours, depending on ferry type, route and destination. During the summer months Ios is also connected by ferry to the other islands of the Cyclades.
Kythnos is a Greek island that is located very close to Attica and is part of the Cyclades group of islands. The island, sometimes called Thermia because of the thermal springs on the island, is one of the lesser visited islands of the Cyclades but is popular with visitors because of its thermal springs. There is a modern spa located in Loutra, with two hot springs in the area. The spring of Ayio Anargyroi and the spring of Caucasus, where the temperature of the water reaches 52C, are famous for their therapeutic effects and have been since ancient times.
The island's harbour is located at Merihas and the island's capital is called Hora and are both located in the north of the island. In the south, only the areas by the bay of Ayios Dimitrios and Panayia Canála are inhabited. This is where a famous monastery is located within a pine forest.
Ferry services from Kythnos depart to the Port of Piraeus or to the port of Lavrio. The crossing to Piraeus takes approximately 3 hours by conventional ferry and approximately one hour by high speed ferry. The crossing time to Lavrio takes about 2 hours. Kythnos is also connected by sea with the islands of Serifos, Sifnos, Milos, Santorini, Sikinos, Folegandros and Kea.