After three consecutive months of stability, the global schedule reliability saw a significant drop in October, highlighting the continued volatility of the major lines.

Sea-Intelligence has released the 171st edition of the Global Liner Performance (GLP) report, covering vessel punctuality for month of October 2025, analyzing the performance of more than 60 shipping companies and 34 trade routes.

The global schedule reliability decreased 3.5 percentage points month-on-month to 61.4%, marking the second significant monthly decline this year after three relatively stable months. Compared to the period last year, the reliability improved by 11.1 percentage points. The average delay time of late vessels slightly increased to 4.98 days, although this is 0.87 days lower than the same period in 2024.

Maersk led the top 13 lines with a schedule reliability 74.1%, followed by Hapag Lloyd at 69.6% and MSC at 65.9%. The remaining nine lines reported in the 50-60% range. PIL had the lowest reliability at 44.9%.

Sea-Intelligence continues to two alliance metrics: "all arrivals," introduced earlier this year to reflect the new alliance structure; and "trade arrivals," which is consistent with the previous approach that on port calls in the destination region.

These numbers are expected to converge as the alliances become fully deployed.

For the period of September- 2025, the Gemini cooperation network had a schedule reliability of 88.6% for the "all arrivals" metric and 86.0 for "trade arrivals"; Mediterranean Shipping followed closely behind with 77.5% and 80.5%, respectively; the Premier alliance underperformed with64.6% and 54.6%; and the original Ocean Alliance (Ocean Alliance) had a schedule reliability of 65.0% (with the same for both metrics).

The global schedule reliability saw its first decline since January in July, Sea-Intelligence reported