Ferry Scores expands to Jersey and Guernsey for 2027

Ferry Scores has expanded its coverage ahead of the 2027 season, adding four vessel services across four passenger ferry routes between Great Britain and the Channel Islands.

The update adds Jersey and Guernsey routes operated by DFDS and Brittany Ferries, using the latest available 2025 EU MRV emissions data and the same published Ferry Scores methodology used across the rest of the site.

Brittany Ferries has withdrawn Barfleur from the Poole–Cherbourg route, so we have moved that service out of our live journey planner while retaining its 2025 emissions record historically.

Four Channel Islands vessel services added

The four vessel services are:

• Voyager — Poole to Guernsey: 116.34 kg CO₂ per passenger per crossing
• Stena Vinga — Portsmouth to Jersey: 164.77 kg CO₂ per passenger per crossing
• Levante Jet — Poole to Jersey: 357.90 kg CO₂ per passenger per crossing
• Islander — Portsmouth to Guernsey: 500.72 kg CO₂ per passenger per crossing

These figures are estimates derived from each vessel's reported 2025 grams of CO₂ per passenger per nautical mile, multiplied by the route distance used in the Ferry Scores methodology.

Following this update, the current Ferry Scores dataset covers 25 ship-route crossings across 11 routes.

Why the distances matter

The emissions measure reported for these vessels is expressed per passenger per nautical mile, so the route calculation also needs a distance in nautical miles.

For the four Channel Islands routes, Ferry Scores uses distances from Reeds Nautical Almanac:

• Portsmouth–Jersey: 125 NM
• Poole–Jersey: 108 NM
• Poole–Guernsey: 87 NM
• Portsmouth–Guernsey: 105 NM

Some public operator pages quote route distances in ordinary miles rather than nautical miles. We therefore use the navigational nautical-mile source rather than treating those figures as interchangeable. Read more about how Ferry Scores calculates crossing emissions.

A changing network for 2027

The update also reflects changes to the services passengers can actually book.

Barfleur made her final departure from Poole on 12 October 2026. Brittany Ferries has withdrawn the vessel from the Poole–Cherbourg route, so we have kept its 2025 emissions record in the historical data while removing the service from the current route finder and league table.

Meanwhile, Poole's Channel Islands links are growing. Poole Harbour Commissioners says DFDS plans 130 return journeys between Poole and Jersey in 2027, compared with 105 in 2026, with the season beginning on 24 March 2027.

What the new results show

The four vessel services added in this update sit towards the higher-emissions end of the current Ferry Scores table.

Voyager is the lowest-emissions addition at 116.34 kg CO₂ per passenger for the crossing, while Islander is the highest at 500.72 kg.

That does not mean one vessel or operator is environmentally "good" or "bad" in an absolute sense. Ferry Scores compares one defined measure: estimated CO₂ per passenger for a crossing using the reported MRV passenger-allocation figure and our published route-distance methodology.

Different vessels carry different mixes of passengers and freight, operate at different speeds and serve very different route lengths. The league table should therefore be read as a transparent comparison under one consistent methodology, not as a lifecycle assessment.

The live league table and route finder have now been updated for current services, while the underlying historical records remain preserved.

As operators change vessels, routes or published schedules, we will continue to separate current journey planning from the historical emissions evidence behind the calculations.