Brittany Ferries sails Portsmouth to Santander directly across the Bay of Biscay, around two nights on board, up to twice a week, all year round. It’s the route for northern Spain and Portugal if you’d rather spend a couple of days on a ship than two days driving through France.
We haven’t sailed this route ourselves yet, our own Brittany Ferries experience so far is on the shorter France crossings (see our Cherbourg and Saint-Malo write-ups). What’s below is based on route research and current operator information, we’ll update it properly once we’ve made the crossing.
Departures
Sailings run a few times a week rather than daily, and frequency drops in winter. Because this is over a full day at sea rather than an overnight hop, treat it more like a short cruise than a quick crossing when you’re planning your schedule either side. Check current departure days and times at Brittany Ferries before booking.
Ship and stay
Given the length of the crossing, a cabin isn’t really optional here the way it is on the shorter routes, you’ll want somewhere to sleep and store your things properly for a full day and night aboard. Expect a fuller range of onboard facilities than the short-crossing ships: multiple restaurants, lounges, entertainment and deck space, closer to a mini-cruise than a ferry in the Dover-Calais sense.
Departure from Portsmouth
Check-in for the longer routes tends to open earlier than on the short crossings, follow the time on your ticket. See our Portsmouth port guide for check-in, parking and getting to the terminal.
The Bay of Biscay has a reputation for rough water, and it earns it, particularly outside summer. A large ferry rarely cancels for weather, but you may well feel it. If you’re prone to seasickness, a cabin with a window and something to take before you feel unwell beats waiting until you do.
Arrival in Santander
Santander is a proper city arrival, not a transit-only port, with Cantabria’s coastline and the Picos de Europa within reach if you want to break the journey rather than push straight on. It’s also noticeably closer to central and southern Spain than Bilbao, if that’s where you’re ultimately headed.
Costs and booking
This is the priciest type of crossing on offer from Portsmouth, you’re paying for a cabin and a much longer sailing, not just a Channel hop. Book ahead where you can, sailings are less frequent so there’s less room to be flexible at short notice than on the France routes. Check current prices at Brittany Ferries for your dates.
Alternatives
Portsmouth to Bilbao is the other direct Spain option, longer but lands you further into the Basque Country. If the Bay of Biscay crossing itself doesn’t appeal, driving down through France to a shorter Spain crossing further south is the usual alternative, though that trades ferry time for driving time rather than removing it. See all five routes on the Portsmouth ferries overview.
Worth the detour: San Sebastián
There’s no direct ferry to San Sebastián, it’s not a ferry port, but it’s only around an hour’s drive east of Santander along the coast. If you’re searching for a ferry there directly, Santander is your nearest option and a genuinely easy detour once you’ve landed.
FAQs
How long is the ferry from Portsmouth to Santander?
Around two nights on board (roughly 30+ hours), it varies by sailing and is closer to a mini-cruise than a quick crossing.
Is the Bay of Biscay crossing rough?
It can be, especially outside summer. Large ferries rarely cancel for weather, but you may feel the motion. A cabin with a window helps if you’re prone to seasickness.
Do I need a cabin?
Not strictly required, but given the length of the crossing, most travellers book one rather than a reclining seat.