How to Choose the Right Ferry Route for Your Trip

Compare crossing times, vehicle costs and terminal locations to pick a route that suits your itinerary and budget.

Start with your itinerary, not the timetable

It is tempting to open a ferry timetable first and build the trip around whatever sailing looks convenient. In practice, the better approach is to sketch the journey on land first — where you want to wake up, what you want to walk or paddle, how many nights you can spare — and only then look for the crossing that fits. Scottish ferry routes are not interchangeable. Two sailings to the same island can leave from terminals sixty miles apart, take wildly different amounts of time, and cost very differently once a vehicle is involved.

Ask yourself three questions before you book anything. How far am I willing to drive to a port? Do I need my car on the island, or would I be better leaving it and travelling on foot? And how fixed is my return date? The answers will usually eliminate half the options immediately, which makes the rest much easier to weigh up.

Crossing times: short hops and long hauls

Crossing duration shapes a trip more than most people expect. On the west coast, the shortest routes are barely more than a continuation of the road. The Colintraive to Rhubodach crossing to Bute takes about five minutes; Lochaline to Fishnish on Mull is a fifteen to twenty minute hop; Claonaig to Lochranza on Arran runs around half an hour and only in the warmer months. These short crossings are brilliant if you are touring and want the water to feel like part of the drive rather than a day out in itself.

The medium routes — Ardrossan to Brodick at roughly fifty-five minutes, Wemyss Bay to Rothesay at about thirty-five, Mallaig to Armadale at around half an hour, Oban to Craignure at forty-five to fifty — suit day trips and short breaks. You can arrive, walk or cycle somewhere satisfying, and be back the same evening.

Then there are the proper sea voyages. Ullapool to Stornoway takes around two hours forty-five. Kennacraig to Islay runs about two hours, a little more to Port Ellen than Port Askaig. Oban to Castlebay on Barra is roughly five hours, and the overnight crossing from Aberdeen to Shetland runs well past twelve. These are not inconveniences to be minimised; they are part of the holiday. Book a cabin or claim a seat by a window and treat the sailing as a day in its own right.

Vehicle costs and the length tariff trap

Fares on Scottish routes are generally calculated on vehicle length and the number of passengers, not on distance alone. That produces some counter-intuitive results.

Measure your vehicle honestly. Roof boxes, bike racks and rear-mounted carriers can push you into a longer, pricier band. A tow bar bike rack counts on many routes.
Motorhomes and campervans pay by the metre. A six-metre van can cost noticeably more than a car and small trailer, so compare before assuming the van is cheaper.
Foot passengers and cyclists often travel cheaply, sometimes free. If your island plans are walkable or cyclable, leaving the car at the terminal can save a serious amount.
Return fares are not always double. On many shorter crossings a return costs only slightly more than a single, so a same-day turnaround is good value.
Check what is included. Some tickets bundle linked crossings for island-hopping itineraries; buying legs separately can cost more.
Fuel up before you sail. Petrol and diesel on smaller islands is dearer, and you do not want to be hunting for a pump on a Sunday.

Terminals, parking and the last thirty miles

Terminal location matters as much as crossing time. A remote port with a narrow single-track approach road and no parking is a different proposition from a town terminal where you can arrive early, park, and eat something decent before boarding.

Check where you will actually leave the car if you are travelling as a foot passenger. Some ports have long-stay parking a short walk from the pier; others have very little, and you may need to book a space in advance. Also confirm check-in windows — vehicles are usually asked to arrive thirty to forty-five minutes before departure, foot passengers far less. Miss the window and you will be watching your sailing leave.

Finally, be realistic about the drive. A route that looks short on a map may involve a slow, winding road with passing places, livestock and no phone signal. Add an hour of buffer in summer.

Seasons, weather and booking windows

Summer sailings with a vehicle sell out weeks ahead, particularly in July and August and around local events. If your dates are fixed, book as early as you can and take the confirmation seriously. Winter brings reduced timetables and, on exposed crossings, a genuine risk of cancellation.

Build flexibility into the plan:

Choose accommodation with a free cancellation window for the nights either side of a sailing.
Have a mainland fallback — a town you would happily spend an extra night in.
Travel out on an early sailing if you can. Delays compound through the day.
Keep your booking reference and a paper copy, since mobile coverage at ports is patchy.

Matching the route to the trip

For a relaxed island break with a car, a medium crossing into a well-served port gives you the most flexibility and the best range of shops, cafés and walks near the terminal. For a touring holiday stitching several islands together, short, frequent crossings and combined tickets win, even if each individual hop looks trivial. For a real sense of leaving the mainland behind, take the long sailing — the one where the coast genuinely disappears — and plan nothing for that day except the journey itself.

Get the crossing right and the rest of the trip tends to fall into place. Get it wrong and you will spend your holiday driving to ports instead of enjoying islands.