Global container shipping reliability remained broadly stable in September 2025, with on-time performance reaching 65.2%, up slightly from August and almost 15 percentage points higher year-on-year, according to Sea-Intelligence’s latest Global Liner Performance report.
The average delay for late vessel arrivals stood at 4.9 days, showing little month-to-month change. Among the top carriers, Maersk achieved the highest reliability at 77%, followed by Hapag-Lloyd at 73.6%, while Wan Hai Lines ranked lowest at 47.9%.
Sea-Intelligence now tracks new metrics reflecting alliance realignments introduced in early 2025, showing strong performance for the Gemini Cooperation (around 87%) and weaker results for the Premier Alliance (about 59%).
Overall, schedule reliability appears to have plateaued near 65%, marking a period of relative stability after years of pandemic-related volatility.
Source: Sea-Intelligence
