Sea-Intelligence: Global Schedule Reliability Records a Marginal Gain in September

Sea-Intelligence has published issue 182 of the Global Liner Performance (GLP) report, with schedule reliability figures up to and including September 2026.

Schedule reliability improved by 0.9 percentage points M/M in September 2026 to 50.6%. The marginal improvement comes after three consecutive M/M drops, with an aggregate drop of ‑14.8 percentage points, from a peak of 64.5% in May. The average delay of late vessel arrivals also improved, decreasing by ‑0.30 days M/M to 6.65 days. Despite this improvement, the average delay for late vessel arrivals in September 2026 is the second‑highest figure for the month.

Maersk was the most reliable top‑13 carrier in September 2026 with schedule reliability of 64.8%, followed by Hapag-Lloyd with schedule reliability of 60.4%. MSC and CMA CGM followed with 57.7% and 51.8%, respectively. Wan Hai was the least reliable carrier with schedule reliability of 26.7%. Ten carriers recorded a M/M improvement in schedule reliability in September 2026, with ZIM recording the largest M/M improvement of 4.7 percentage points. On the other end, Maersk recorded the largest M/M decline of ‑1.8 percentage points. On a Y/Y level, none of the 13 carriers recorded an improvement in schedule reliability in September 2026, with PIL recording the largest Y/Y decline of ‑27.3 percentage points. PIL was one of twelve carriers with a double-digit Y/Y decline.

In August/September 2026 MSC was the most reliable carrier alliance with schedule reliability of 68.9%, followed by Gemini with 68.4%, and Ocean Alliance with 44.8%. Premier Alliance was the least reliable carrier alliance with schedule reliability of 41.5%.