Santorini (Thira) - Kos
Ferry to Dodecanese Islands
Santorini (Thira) - Kos
Ferry to Dodecanese Islands
See ferry fares and operators from all over the world in one spot, and find the sailing that fits your trip. Booking early is usually the surest way to get a good price and plenty of choice.
Discounts are available with Direct Ferries all year round. If a senior discount applies to your crossing, it's applied for you automatically once the right age bracket is selected in the passenger options.
Students and recent graduates can claim a 5% saving. Register with our partner Student Beans to verify eligibility, then apply your discount code at checkout.
Resident discounts also apply to a number of Spanish and Italian routes — pick the "Residents" option during search and the fare adjusts automatically. Be ready to show proof of address, such as an ID card or residency certificate, at check-in.
Requirements for travel documents change from route to route, so check what's needed ahead of time. A valid passport is usually required for Santorini (Thira) to Kos travel, plus any visa or national ID relevant to your nationality. Since the rules depend on your citizenship and destination, our Check-in, Travel Documents & Tickets guide is the place to check for the latest guidance and avoid delays at check-in.
To book, just add your departure port, arrival port and preferred date, and you'll see every fare and sailing on offer. You can also compare alternative routes and times to find your best match.
Look out for early-bird pricing and flexible ticket options, such as upgrades or flexi-fares that let you make changes down the line. Entering accurate details — passenger count, vehicle specs and so on — keeps the process running smoothly.
As soon as your booking is confirmed, a confirmation email will land in your inbox. What happens next with your boarding pass depends on the operator you've booked.
Some operators issue boarding passes right away, while others need you to check in at the port itself. Where it's supported, the Direct Ferries app lets you check in online in advance.
You'll usually find ticket desks close to the ferry terminal. Giving yourself a little extra time before departure means you can collect tickets and check in without any stress.
Bring your confirmation email and valid photo ID, such as a passport or identity card, to check in. Pet owners should have vaccination and insurance documents on hand, and anyone with a resident discount should carry proof of address.
There are a few reasons departures from Santorini (Thira) to Kos might not show for your chosen date — a schedule change, sold-out sailings, or a seasonal lull are the most likely. Try another date or check alternative routes through our Route & Port finder.
Booking your Santorini (Thira) to Kos ferry well ahead of time generally works in your favour — you'll usually find better fares and a wider choice of departures and cabins.
A few weeks ahead is usually enough notice to catch the best offers, though fares can still fluctuate with the season and remaining space.
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Located in the southern Aegean Sea is the Greek island of Santorini and lies around 200 km to the south east of the Greek mainland. It forms part of the Cycladic group of islands and is the only location in Europe to have a hot desert climate. A popular pastime for visitors to Santorini is to take a cruise to the island's three islets, which were created in ancient times during a volcanic eruption. The islets are called Nea Kammeni, Palea Kammeni and Thirassia and provide an excellent vantage point for visitors to see the volcano, being located to the west of the island. The island's capital is Fira and is full of typical Cycladic houses with whitewashed walls, blue domed churches and stepped streets full of shops, cafes, restaurants and bars.
The island of Santorini has two ports. The main port is Athinios, where all the ferry and commercial boats arrive. There is also the Old Port which is mostly used for cruise ships. From the main port, ferries can be taken to Piraeus, Rafina and to the other islands in the Cyclades. Both conventional and high speed ferries operate on these routes.
Kos is a Greek island that lies in the eastern Aegean Sea and is situated to the south of the island of Kalymnos and to the north of the island of Nisyros. The island, which is only around 3 miles off the Turkish coast and sits in the Keramiko Gulf, or the Kos Gulf, is the third largest of the Dodecanese islands. Kos is a well known and popular holiday destination where visitors go to enjoy the island's beaches. Kos was also one of the first Greek islands to recognise the benefits of tourism to its economy and as a result many hotels were built along the island's long and sandy coastline in the east and south. Cycling is a popular activity on Kos as the island's terrain is quite flat and because there are many bicycle hire outlets throughout the island along with some dedicated cycle paths between some of the larger hotels.
There are daily services between Kos and Piraeus along with services between Kos and the rest of the Dodecanese, the islands of the north eastern Aegean and Turkey. The trip by conventional ferry can take up to 13 hours, depending on the intermediate stopovers, and the trip with a high speed boat can take between 5 and 8 hours.
