Sea-Intelligence: Global Schedule Reliability for April 2026 the Highest of the Year

Key Takeaways

• Global schedule reliability hit 62.4% in April 2026, up 0.4% MoM.
• Maersk led top‑13 carriers with 76.1% reliability, highest in the group.
• Wan Hai lagged at 39.6%, the lowest among the 13 carriers.
• Gemini Cooperation posted 85% reliability across all arrivals, topping alliance scores.
• Year‑over‑year reliability rose 4.0 points, showing industry-wide improvement.

Pulse Analysis

Schedule reliability is a leading indicator of ocean‑carrier performance, directly influencing inventory planning and freight pricing. Sea‑Intelligence’s April 2026 data demonstrates a modest but meaningful rebound, with the global average climbing to 62.4% and average late‑arrival delays shrinking to just over five days. This improvement reflects the gradual easing of pandemic‑induced port congestion, better vessel slot allocation, and the adoption of digital tracking tools that give operators greater visibility into real‑time disruptions.

Carrier‑specific results reveal a widening gap between the industry’s best and worst performers. Maersk’s 76.1% reliability underscores its investment in fleet modernization and integrated logistics platforms, while Wan Hai’s sub‑40% score highlights vulnerabilities in its network, possibly tied to limited capacity and slower adoption of predictive analytics. Alliance dynamics also shifted, with Gemini Cooperation achieving an 85% reliability rate across all arrivals—a benchmark that could pressure rival alliances to refine their scheduling algorithms and enhance collaborative planning.

Looking ahead, the upward trajectory is likely to continue as ports expand automation, and carriers further embrace AI‑driven schedule optimization. However, external risks such as geopolitical tensions, labor disputes, or extreme weather events could reverse gains. Shippers should monitor carrier reliability trends closely, leveraging the granular data now available to negotiate service level agreements that reflect true performance, thereby safeguarding supply‑chain resilience in an increasingly volatile maritime environment.