Official figures from CalMac confirm that the Southern Isles are taking the brunt of the disruption compared to their northern neighbours.

CalMac’s annual performance report highlights a sharp reliability gap, with the islands south of Harris hit hardest by disruption. The figures cover the third Clyde and Hebrides contract from October 2025 to March 2026.

While ferry services in Hebrides North (covering Lewis, Harris, and North Uist) achieved their overall reliability target at 90.0% with technical cancellations kept down to 2.2%, services in Hebrides South suffered a severe slump. Regional reliability across southern Hebrides routes fell to 82.6%, dragged down by a 6.0% technical cancellation rate and a 10.0% weather loss rate.

The official CalMac figures confirm what residents in South Uist and Barra have been experiencing over the winter months.

Reliability on the Mallaig–Lochboisdale route collapsed to 60.0%, with a staggering 22.0% of scheduled sailings cancelled due to technical faults. A further 18.0% were attributed to weather. 

On the Oban–Castlebay/Lochboisdale run, reliability fell to 62.0%, impacted by 14.0% technical breakdowns and 24.0% weather cancellations.

Although the Ardmhor (Barra)–Eriskay sound crossing maintained an 85.0% reliability figure short of the 90% target, local dissatisfaction was evident, with islander trust on the Barra route plummeting to just 14.0%.

Adding to local frustration, a promised expansion of services on the Sound of Barra failed to deliver during CP1. CalMac admitted that the enhancement was "delayed by challenges in recruiting crew locally with the necessary skills and qualifications."

An alternative crewing model allowed temporary extra sailings to operate between April and June 2026, with work ongoing to reinstate the service in Contract Period 2 (CP2).

Meanwhile, further deck space pilot schemes on both the Sound of Barra and Sound of Harris were extended following direct requests from local communities.

CalMac's latest annual performance report paints a disappointing picture of the Clyde and Hebrides ferry network, which missed the mark on several key performance indicators.

Ferry reliability came in at 87% — close, but still short of the 90% goal — while cancellations caused by technical problems with vessels or ports climbed to 4.2%, well past the 3.5% ceiling that was set. Perhaps most worryingly, confidence among islanders has slipped to just under 52%, well below the 60% the company had hoped to reach.

But the picture was not uniformly poor. Vessel availability, punctuality, customer trust, complaints, first contact resolution, digital use, vehicle deck utilisation and both waste measures all met their targets. The report describes performance as "mixed."

Assessing its performance, CalMac acknowledged the direct human cost of ferry disruption on island communities. The annual report states: "We know that ferry services are not simply a matter of transport. For many people, they shape daily life — access to work, education, healthcare, family, supplies and opportunity. That is why performance matters, and why this report is honest about both progress and challenge."

Reflecting on the initial six months of the new contract, the report noted: "Contract Period 1 was the first six months of delivery under CHFS3 and the first stage in putting our Annual Plan commitments into practice. It was a period of real progress, but also one that showed more work is needed before improvements are felt consistently by customers and communities."

The operator pointed directly to an ageing fleet as the main culprit, along with weather, workforce pressures and wider operational dependencies, for cascading delays across the network, stating: "Ageing vessels, technical faults, overhaul pressures and periods where several vessels were unavailable at once reduced flexibility across the network and made it harder to protect services. This was felt most clearly towards the end of the period, when disruption affected customers and communities in different ways..."

Despite the operational strains, freight figures underscored the ferry network's central role in keeping island economies moving.

Hebrides North carried the highest volume of commercial vehicle lane-metres across the network (134,863m, including 6,662 commercial vehicles on the Ullapool–Stornoway route alone).

CalMac also reported progress on local supply chains, making product switches to Scottish-sourced tea and haddock onboard vessels, though onboard local hot food and drink sales finished slightly below target at 61.5%.

To prevent repeated breakdown cascades, CalMac is introducing protected maintenance time into published timetables — covering 80% of major vessels and 85% of the small ferry fleet, alongside procuring critical spare parts.

Despite the ongoing reliability issues in Hebrides South, CalMac’s staff scored highly in customer satisfaction with 88% approval, customer trust at 79%, and islander satisfaction at 78%, which was above target. Where the ferry fell down was in islander trust, which hit only 56%, falling short of its goal.

CalMac’s reading is that "while many customers rated their experience positively, disruption continued to affect confidence in the service."

To rebuild relationships with communities, CalMac plans to launch an Islander Voice Panel and reinstate its Community Fund during CP2.

Setting out the operator's stance for the year ahead, CalMac's Business Plan stated: "Contract Period 2 (CP2) represents a shift from mobilisation to early delivery... This year is about consolidating early progress, strengthening the foundations we've laid, and preparing for the more visible benefits that will emerge in future years."