Global Liner Schedule Reliability Surges Sea-Intelligence Report

The latest Global Liner Performance (GLP) Report by Sea-Intelligence (Issue 166) highlights a notable 7.4 percentage point month-on-month (M/M) increase in schedule reliability for May 2025, reaching 65.8%—the highest since November 2023. Compared to the same month last year, reliability is up by 10 percentage points, marking steady progress since February.

Top Carrier Performances

• Maersk emerged as the most reliable top-13 carrier with 75.9% schedule reliability.

• Hapag-Lloyd followed closely at 72.5%.

• Most other major carriers ranged between 60–70%, while

• ONE was the lowest performer at 55.1%.

Alliance Performance Comparison

Due to ongoing restructuring, alliance performance was evaluated using two metrics:

• “All Arrivals”: includes both origin and destination region calls.

• “Trade Arrivals”: focuses on traditional destination-region performance.

April–May 2025 Results

• Gemini Cooperation:

  • All Arrivals: 90.9%

  • Trade Arrivals: 88.4%

• MSC:

  • All Arrivals: 70.5%

  • Trade Arrivals: 77.9%

• Premier Alliance:

  • All Arrivals: 55.2%

  • Trade Arrivals: 52.7%

• Ocean Alliance (unchanged by new metrics): 57.4%

Sea-Intelligence notes that full assessment of the new alliances will only be possible after their full implementation in July 2025. However, the upward trajectory in schedule reliability signals growing operational stability and improved performance across global trade lanes.