Abstract: The causes of port delays are investigated in this project, and also the ways in which they impact last-mile delivery (LMD) operations. Disruptions can seriously affect downstream logistics, resulting in missed delivery deadlines, higher storage costs, and operational inefficiencies, given the vital role ports play in the global supply chain. The study identifies the main causes of port delays, including heavy cargo loads, problems with customs clearance, and bad weather, and investigates how these causes affect stakeholders involved in last-mile delivery. The study assesses the degree of association between particular delay causes and LMD impacts using statistical analysis, specifically Chi-square tests and Multiple Response Analysis. The results point out how important it is to address port inefficiencies by implementing digital and automated systems, enhancing port infrastructure, coordinating with freight forwarders more effectively, and expediting customs clearance. Strategies like forming alliances with alternate transportation providers, reserving warehouse space in advance, employing airlift and expedited shipping for urgent shipments, improving real-time tracking, and taking into account alternate ports are all advised in order to reduce last-mile disruptions. The insights are intended to help freight operators, port authorities, and logistics providers create proactive plans that improve customer satisfaction and supply chain resilience.

Keywords: Port delays – Last – mile disruptions (LMD) – Supply chain disruptions – Customs Clearance – Port Infrastructure – Expedited Delivery – Real time tracking – Logistics Management

| DOI: 10.17148/IARJSET.2025.125164