Ferry From St Lucia to Martinique: Times, Prices and What to Expect

Short answer: yes, there is a ferry from St Lucia to Martinique. It runs between Castries and Fort-de-France, takes roughly 90 minutes, and is operated by FRS Express des Îles. Round trip fares have recently sat around $90 to $135 US per adult, plus a sea departure tax of EC$33 per person paid in cash at the terminal. Sailings are a few days a week rather than daily, so check live times before planning around it. We run guests to the Castries terminal regularly, so here is everything that actually matters.

Stand on the north coast of St Lucia on a clear day and you can see Martinique sitting on the horizon, about 20 miles out. Close enough to feel reachable, and it is. Ninety minutes at sea and you step off into France: croissants, euros, road signs in French, and an island culture completely different from the one you left after breakfast.

It is one of the best things you can do with a spare day and a half in St Lucia. It is also the trip we see people get wrong most often, usually because of one small cash rule at the counter. Let us save you that.

Who runs the ferry and how long does it take?

FRS Express des Îles operates the Castries to Fort-de-France route, with a crossing time of roughly 90 minutes non-stop. The same network continues north to Dominica and Guadeloupe, so this is also the first leg of proper Caribbean island hopping.

Most people still call the company L'Express des Îles, so you will see both names used online and both are correct. Crossing times quoted by different sources range from about 1 hour 15 to 1 hour 35 depending on routing and conditions, so treat 90 minutes as the planning figure rather than a promise.

How often does the ferry sail?

Expect a few round trips per week rather than a daily service, and know that the schedule drops to around three round trips a week during the operator's maintenance periods, typically June, September and January. Always check live times on the operator's site before building plans around it.

This is the detail that trips people up, because a ferry route feels like it should run daily and this one does not. Frequency also varies by season. If your trip depends on a specific sailing day, book it before you book anything else, and never assume there will be a boat tomorrow just because there was one today.

What does the ferry cost?

Round trip tickets have recently sat in the range of roughly $90 to $135 US per adult, with child fares available, and booking ahead is genuinely cheaper. Popular sailings around holidays sell out.

Then there is the cost that catches almost everyone at the counter: a sea departure tax of EC$33 per person aged 12 and over, payable on the spot before boarding, in cash. It is not included in your ticket. That is roughly $12 US.

We mention this first when guests ask us about the ferry, because arriving at the terminal without EC dollars in hand means hunting for an ATM with a boat to catch. Bring the cash with you. If you need a refresher on currency here, our guide to how much cash to carry in St Lucia covers the whole system. 

One more limit worth knowing: you cannot take a vehicle on the St Lucia crossing. Rental cars stay on their own island, so plan to explore Martinique on foot, by local transport, or with a hire car arranged over there.

Do I need a passport for Martinique?

Yes. Martinique is legally France, an overseas department of the European Union, so you are leaving one country and entering another. Immigration will expect to see a return or onward ticket as well.

French nationals can use a valid national identity card for shorter stays, but everyone else needs a passport. Check your own nationality's entry rules for France before booking, because they are France's rules rather than Caribbean ones.

Practical currency note for the other side: Martinique uses the euro, not EC or US dollars. Cards work widely in Fort-de-France, but carry some euros for markets and small cafés.

What is the crossing actually like?

Comfortable, with air conditioning on the lower deck and an open upper deck, but arrive early because check-in, baggage handling and customs are slower than you expect. There is no wifi onboard.

Travellers who make this crossing regularly give consistent advice, and it is worth taking seriously. Allow real time at the terminal, since boarding is not a process to be optimistic about. Customs in St Lucia is thorough and bags are frequently opened, so pack accordingly and do not leave it to the last minute.

The sea between these islands is open water and the channel can be lively. If anyone in your group is prone to seasickness, take something before boarding rather than after, sit low and central, and keep your eyes on the horizon. The same advice applies on the island's winding roads, which we cover in our guide to whether you get carsick in St Lucia. 

Is a day trip to Martinique realistic?

It depends which direction you are travelling. There is a dedicated day trip service running from Martinique to St Lucia, but doing the reverse as a same-day return from Castries is tight and entirely dependent on that week's timetable. An overnight in Fort-de-France makes far more sense.

From the Martinique side, a separate operator sails from Le Marin in the south to Rodney Bay on several days a week, arriving mid-morning and returning late afternoon. That is a proper day out, and it is why you occasionally see French visitors wandering Rodney Bay with beach bags.

From the St Lucia side, a same-day return is possible when the sailing times line up, but you will spend most of the day travelling. Our honest advice: if Martinique interests you, stay a night. If you only have one free day, spend it on the sights you flew here for, and our island excursions will show you what a full St Lucia day can hold.

How do I get to the Castries ferry terminal?

The terminal is in the capital, about 20 to 30 minutes from Rodney Bay, 25 minutes from Marigot Bay, and 60 to 75 minutes up from Soufriere. Sailings leave early and check-in starts earlier, so this is a morning journey worth arranging rather than improvising.

Remember there is no Uber in St Lucia to summon at 6am, which is exactly when you will want to be moving. Your options are a pre-booked private transfer to the ferry terminal with a fixed price and a driver who turns up early, an island taxi arranged the day before at the fares in our taxi price list, or the green-plate buses if you are travelling light and not against the clock. 

Coming back in the late afternoon, have a driver's WhatsApp saved. Arrivals cluster when the boat docks and the taxis at the terminal go quickly.

Quick answers

Is there a ferry from St Lucia to Martinique? Yes, between Castries and Fort-de-France, operated by FRS Express des Îles, taking roughly 90 minutes.

How much is the ferry from St Lucia to Martinique? Recently around $90 to $135 US round trip per adult, plus an EC$33 departure tax paid in cash at the terminal.

Does the ferry run every day? No. Expect a few round trips per week, dropping to around three during maintenance months. Check live schedules before planning.

Can I take a rental car on the ferry? Not on the St Lucia route. Vehicles stay behind.

Do I need a passport to go to Martinique? Yes for most nationalities, since Martinique is France. A return or onward ticket is expected too.

How early should I arrive at the ferry terminal? Early. Check-in, baggage and customs all take longer than people expect, and St Lucia customs is thorough.

Is there wifi on the ferry? No. Download what you need before boarding.

The bottom line

The ferry to Martinique is one of the best short adventures in the eastern Caribbean: 90 minutes at sea and you are having lunch in France. Book ahead because sailings are limited, bring your passport and EC$33 in cash for the departure tax, check the live sailing days, and give yourself plenty of time at the terminal.

One last piece of advice we give every guest who asks about this trip: never schedule the ferry back for the same day as your flight home. Caribbean ferries run on Caribbean time, and a delay that would be charming on any other day becomes a missed flight. Give yourself a night's buffer, always. Our departure day timing guide covers how early to leave for Hewanorra. 

Book your early morning ride to the Castries terminal and start the crossing without a 6am taxi hunt.