Ferry from Ios to Rethymno

Ferry from Ios to Rethymno connects the Cycladic island of Ios with the north coast of Crete, giving you a direct link from Ios to a smaller, more relaxed Cretan city without having to go via Heraklion or Athens. This is a longer, seasonal route usually operated by Seajets, with typical journey times of about 6 to 8 hours and a route distance of roughly 167 kilometres or 90 nautical miles across open Aegean waters. Sailings are limited compared with Ios–Heraklion, so this connection works best for travellers who are happy to plan around specific days and want to combine Ios with the old town atmosphere and quieter feel of Rethymno.

Key Information

Ferry duration

The Ios to Rethymno ferry usually takes around 6 hours 56 minutes on average, with reported crossing times ranging from about 5 hours 45 minutes on the fastest sailing up to around 7 hours 55 minutes on the slowest. Some summaries simply state that the journey from Ios to Rethymno takes about 8 hours 15 minutes, which matches older indicative schedules and underlines that this is a long crossing by Aegean standards. Rome2Rio also notes a typical Ios–Rethymno ferry duration of about 7 hours 15 minutes, so planning for roughly 6 to 8 hours at sea is realistic.

Ferry companies

This route is mainly operated by Seajets, which runs seasonal services between Ios and Rethymno and is often the only company named for this direct crossing. Port and route guides confirm that Seajets includes Rethymno among its Cretan ports along with Heraklion, linking Ios with both Crete destinations at different times of the season. While booking platforms may show the route under different brandings, Seajets is the core operator you will usually find for Ios–Rethymno.

Fast vs slow ferry

On this route there is no “slow” conventional ferry in the classic sense; instead, all crossings use high speed vessels, but some are non stop while others include extra stops which increase the overall time. The fastest recorded crossing from Ios to Rethymno is about 5 hours 45 minutes, operated by Seajets, while the longest ones are close to 7 hours 55 minutes. In practice you can treat any Ios–Rethymno sailing as a fast ferry crossing but still expect to spend most of the day on board.

Best time to travel

The Ios to Rethymno ferry is a strongly seasonal route, with more sailings in summer and very limited service in the cooler months. Ferryscanner notes that from June to September there are around 4 weekly crossings between Ios and Rethymno, while from October to May this drops to about 1 weekly sailing. Some current data also notes that at certain times there are no ferries operating between Ios and Rethymno due to seasonal or operational constraints, so you must check live schedules for your travel dates.

Sea conditions and wind

The long open sea route between Ios and Rethymno is exposed to strong Meltemi winds, especially in July and August, which can make conditions choppy. High speed ferries may slow down in rough seas, increasing the journey time, and in very strong winds sailings can be cancelled or rescheduled for safety. If you are prone to seasickness, this is a route where motion sickness tablets, a seat near the centre of the vessel and flexibility in your schedule are important.

Port guide

In Ios, ferries to Rethymno depart from the island’s main port at Gialos, a compact harbour with ticket offices, cafés, tavernas and small shops very close to the quay. In Rethymno, ferries arrive at the town’s main port on the north coast of Crete, a short walk or taxi ride from the old town, Venetian harbour and seafront hotels. Buses and taxis are available from the port area, making it easy to continue to other parts of Rethymno town or along the north coast.

Car rental advice

On Ios many travellers use local car, quad or scooter rentals to explore the island and then return vehicles before boarding such a long ferry to Crete, because one way rentals between Ios and Crete are not common. In Rethymno you can rent a car either in the town centre or at larger hubs such as Heraklion or Chania airports if you are combining the ferry with onward flights. Importantly, recent route details state that cars are not allowed on the ferries operating between Ios and Rethymno, so this route is currently foot passenger only and not suitable if you need to bring a vehicle.

Foot passenger tips

As a foot passenger you should arrive at Ios port at least 45 minutes before your scheduled departure to Rethymno, and earlier in high summer when queues are longer. Because the journey can take between about 5 hours 45 minutes and nearly 8 hours, pack a small day bag with water, snacks, a light jumper and anything you need to stay comfortable. On arrival in Rethymno, it is convenient to have your hotel address and a basic idea of the walk or taxi route ready, as the port can be busy when ferries arrive.

Is this route worth it?

The Ios to Rethymno ferry is particularly worthwhile if you want to combine Ios with Crete but prefer the more relaxed, historic feel of Rethymno over the busier atmosphere of Heraklion. Although the crossing is long, it still fits into a single day and saves you from having to route through Athens or make extra changes. For island hoppers who enjoy longer sea journeys and want to arrive directly into Rethymno’s old town area, this route adds a distinctive leg to a Cyclades and Crete itinerary.

Alternative route if cancelled

If there is no Ios to Rethymno ferry on your travel date, or if the service is not operating that season, the usual alternative is to travel via Santorini or Heraklion. For example, you can sail from Ios to Santorini and then take a separate ferry from Santorini to Rethymno, which often takes around 1 hour 45 minutes to 2 hours. Another option is to travel from Ios to Heraklion (which has more frequent ferries) and then continue overland by bus or car from Heraklion to Rethymno along the north coast of Crete.

Reverse route internal links

The reverse route from Rethymno to Ios is described with typical durations around 5 hours 30 minutes and fastest crossings of about 5 hours 5 minutes with Seajets. Rome2Rio notes that the Rethymno–Ios ferry runs on average once a week, taking around 3 hours 55 minutes in some schedules, which shows that journey times can vary widely depending on the exact service.

Frequently Asked Questions