Global Port Congestion Crisis: Implications for Marine Cargo Insurance

Global port congestion has shifted from isolated disruptions to a systemic challenge affecting every major trade lane.

Currently exacerbated by the crisis in the Middle East, these pressures are no longer temporary; they’re reshaping cargo risk profiles in ways insurers, brokers and clients can’t ignore.

This overview outlines the major drivers of today’s global congestion crisis and how they compound to create extended transit times, increased cargo exposure, and fundamentally alter risk profiles.

Understanding the pressures is essential for maintaining profitable portfolios while protecting client interests in an era of persistent volatility.

Primary drivers of global port congestion

1. Capacity constraints. The current Middle East crisis involving Iran has forced vessels to avoid the Strait of Hormuz and nearby shipping lanes, disrupting key oil and trade routes through the Persian Gulf.

The earlier Red Sea hostilities through most of 2025 had already forced vessels to reroute around southern Africa, adding approximately 4,000 miles and two to three weeks to typical voyages.

These extended routes removed an estimated 5–10% of global container capacity from regular service, disrupting weekly schedules and causing multiple ships from the same service to arrive simultaneously.

While major carriers began cautiously resuming Suez Canal transits in late 2025, the transition remains gradual and fragile. Full normalisation is not expected until the second half of 2026, and extended routing continues to influence service reliability.

2. Labor disruptions. Labour actions across major European ports continued to create significant operational disruptions.

Rotterdam’s strikes at APM Terminals Maasvlakte II and Antwerp’s worst congestion since COVID-19 highlighted the scale of the impact, while capacity pressures and schedule backlogs across several North European ports further strained terminal operations and vessel turnaround times. 

3. Shipping line alliance restructuring. Adjustments to carrier alliances have taken their toll, with new partnerships disrupting 20+ years of established patterns.

Ships that previously called ports on Tuesdays now arrive on Thursdays, colliding with other services. The timing is catastrophic; restructuring during existing congestion means vessels can't find their new rhythm, causing unreliable scheduling and increased connection risks across global trade routes.

4. Equipment availability. With containers tied up at sea for longer periods, they’re often unavailable where they’re needed most. When carriers can’t source containers at origin ports, they may deploy two smaller vessels to replace one larger one, doubling port calls and further straining terminal capacity.

When equipment is sourced from remote locations, suitability becomes an issue, increasing risks such as cargo stack instability or mis-declared cargo as shippers try to avoid additional delays.

Equipment constraints particularly impact long-haul routes where containers become trapped in congestion cycles.

5. Port omissions. Widespread port omissions and blank sailings perpetuate operational disruption cycles. When carriers skip congested ports, vessels arrive at subsequent destinations ahead of schedule, while their intended cargo accumulates for the next available ship; effectively doubling loads and creating compound delays.

Major carriers have restructured service routes, with some removing multiple port calls from Asia-Northern Europe services, creating cascading schedule unreliability throughout connected global routes.

6. Weather events. Extreme weather and historically low inland waterway levels are turning routine delays into major operational breakdowns.

European ports typically rely on barges to move 35-40% of containers inland, but shallow river conditions create terminal backlogs with cleared cargo having no evacuation routes.

At the same time, increasingly severe storms are shutting ports for days rather than hours. Weather has shifted from a periodic challenge to a structural driver of global port congestion, rendering traditional contingency planning increasingly ineffective and causing unpredictable delays for cargo transiting through affected regions.

7. Tariff impacts. Tariff implementation timelines have introduced major volatility into global supply chains, driving importers to accelerate shipments ahead of regulatory deadlines.

Front-loading produced record volumes, including Los Angeles processing over 1 million TEUs in July 2025, while simultaneously straining ports worldwide and keeping air freight rates elevated.

These surges intensify congestion, extend vessel wait times and push logistics networks beyond sustainable capacity. Entering 2026, demand patterns remain fundamentally altered.

While some U.S.-China fees have been delayed or suspended, providing partial market stabilisation, businesses continue to reassess cargo economics in response to tariff pressures.

In addition, recent geopolitical disputes between the U.S and Europe over Greenland have also caused additional potential trade disruption. Secondary ports are experiencing reduced vessel calls as carriers consolidate operations at major hubs, creating a supply chain governed by regulatory deadlines rather than natural demand cycles.

The structural shift in sourcing and volume patterns appears unlikely to revert to pre-tariff norms, establishing new baseline conditions for cargo risk assessment.

Regional Implications

The congestion crisis presents distinct challenges for cargo moving to and from Australia and the Asia-Pacific. Longer transit times from Europe and North America extend exposure periods, while unreliable schedules undermine just-in-time inventory strategies.

Australian ports, though generally less congested than those in the northern hemisphere, face capacity pressure from diverted cargo and irregular vessel arrivals.

Regional trade patterns are shifting as cargo owners seek alternative routing through less congested Asian hubs, potentially increasing transshipment risks and total journey times.

The concentration of vessel calls at major hubs reduces service frequency to secondary Australian ports, resulting in inland distribution and final-mile delivery challenges.

Recommendations for brokers

● Recalibrate transit time assumptions.Traditional 30–35-day transit assumptions for Europe-Australia routes should be extended to 45-50 days to account for congestion delays.

Asia-Australia routes require 5–7-day buffers beyond historical norms.

● Revise delay coverage. Standard cargo policies typically exclude delay as a covered peril, even as today’s conditions are driving transit delays well beyond historical norms.

Where delay coverage is available, recommend securing limits of 7–14 days for temperature-sensitive cargo and 21 days for general cargo to better reflect current realities.

For policies without delay coverage, risk management efforts should focus on mitigating consequential losses arising from extended transit times.

● Understand congestion-specific exclusions and extensions. Make sure you understand how your carriers are handling congestion-related claims.

Look for coverage that specifically addresses costs from extended dwell times, trans-shipment necessitated by port omissions, and temperature control during extended delays.

● Look into proactive risk mitigation incentives. If your clients are investing in cargo monitoring, flexible routing arrangements, or proactive inventory management, that should translate to better terms. Document these risk improvements when you're negotiating coverage.

● Emphasise diversification. Advise clients to diversify across multiple shipping lanes and seasonal patterns.

Concentration in congestion-prone routes means concentration of risk, and that's a conversation you should be having during policy reviews.

● Technology integration. Position real-time cargo monitoring and predictive analytics as risk management tools that protect both your client and their insurance program.

Carriers like Parsyl increasingly recognize these investments with better terms.

Recommendations for insurers

● Enhance accumulation monitoring. Implement dynamic accumulation controls that account for extended port dwell times. Cargo may remain at risk for 2-3x normal periods, requiring more frequent exposure reviews and lower per-location limits.

● Apply port-specific risk ratings. Develop differentiated pricing for cargo transiting through chronically congested hubs (Rotterdam, Antwerp, Los Angeles/Long Beach) versus more reliable alternatives. Apply geographic risk considerations that reflect current congestion levels.

● Enhance due diligence. Require detailed routing information including transshipment ports, carrier alliance details, and contingency routing plans.

Assess insureds' supply chain flexibility and ability to adapt to disruptions as this directly impacts claim frequency and severity.

● Refine equipment and handling risk assessment. Increase scrutiny of container suitability and handling protocols, particularly for cargo originating from equipment-shortage regions. Consider higher handling risk premiums for shipments requiring non-standard equipment solutions.

● Establish surge capacity planning. Develop surge capacity protocols for claims handling during major congestion events, including pre-positioned expertise in key markets and streamlined emergency response procedures.

Congestion as the new baseline: rethinking cargo risk

While ports will eventually stabilise, the forces driving today’s congestion are now permanent features of global supply chains.

Adapting to this reality requires insurers and brokers to rethink traditional underwriting, pricing, and coverage models.

Success will depend on shifting from reactive models to proactive risk management: treating congestion as a structural condition, not a temporary disruption.

By doing so, insurers and brokers can protect client interests, sustain disciplined portfolios, and position themselves as trusted partners in an increasingly volatile maritime landscape.

Learn more about systemic supply chain risk