Global container schedule reliability fell to its second-lowest level of 2025 in December, highlighting persistent operational volatility across trade lanes and carriers.
Sea-Intelligence has released issue 173 of its Global Liner Performance (GLP) report, covering schedule reliability across 34 trade lanes and more than 60 carriers.
The data show that global schedule reliability fell to 62.8 per cent in December 2025, down 1.2 percentage points from November, marking the second-lowest monthly figure since May.
On a year-on-year (YoY) basis, reliability remains up 9.0 percentage points. Average delays for late vessel arrivals increased slightly to 5.04 days, the second-highest monthly figure since April.

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Among the top 13 carriers, Maersk was the most reliable at 76.7 per cent, followed by Hapag-Lloyd at 75.2 per cent.
MSC and HMM recorded reliability in the 60–70 per cent range, while eight of the remaining nine carriers scored between 50–60 per cent.
Wan Hai ranked lowest at 47.8 per cent. Month-on-month (MoM) improvements were limited to four carriers, though all 13 showed YoY gains.
Alliance performance varied significantly. Gemini Cooperation led with 92.3 per cent schedule reliability across all arrivals, followed by MSC at 73.5 per cent and Premier Alliance at 56.9 per cent.
Ocean Alliance scored 58.8 per cent. Sea-Intelligence introduced a new “all arrivals” metric that includes origin calls on East/West trades, providing a more comprehensive view of alliance performance and operational realities.

The report highlights ongoing volatility in container shipping reliability and underscores the need for improved operational planning and collaboration across carriers and alliances.
For more information:
Sea-Intelligence – https://www.sea-intelligence.com/





