Hormuz Closure Forces Shipping Carriers into Costly Dilemma—Red Sea Return Now a High-Risk Gamble

Western naval power has secured a critical trade corridor, but only through a costly and temporary arrangement. The Red Sea detour, forced by Houthi attacks beginning in late 2023, lasted nearly two years. This unprecedented avoidance lifted container rates and margins, and it absorbed around 6% of global fleet capacity. The corridor's strategic importance is clear: it historically handles 12% to 15% of global trade and up to one-third of East-West container flows. The recent Gaza ceasefire deal has now allowed major carriers like Maersk and Hapag-Lloyd to begin reintroducing services, marking a potential end to one of the most disruptive episodes in recent maritime history.

Yet this pivot reveals a fundamental limitation. The new threat to the Strait of Hormuz, triggered by U.S.-Israel strikes in late February, has created a parallel chokepoint crisis. Iranian forces have declared the strait closed, and ship-tracking data shows traffic falling sharply. The impact is immediate and severe: roughly 10% of the global container fleet, or 3.4 million TEU in capacity, operates on routes passing through this waterway. A prolonged closure would force a reconfiguration of services, tightening vessel supply and increasing congestion at Asian ports.

The fragility of the current setup is underscored by a new overlapping risk. Iran has explicitly threatened to target the Red Sea corridor, framing it as a retaliatory zone due to the presence of U.S. naval assets like the USS Gerald R. Ford. This creates a permanent rerouting risk, as any return to the Red Sea could be reversed by a fresh wave of attacks. The bottom line is that Western naval power can manage one crisis at a time, but the simultaneous pressure on two vital chokepoints exposes a structural vulnerability. The era of guaranteed, uninterrupted trade flows through these lanes is over.

Operational and Financial Impact

The immediate operational toll is stark. A prolonged closure of the Strait of Hormuz has stranded over 132 container ships with a combined capacity of 458,000 TEU in the Persian Gulf. This creates a severe equipment imbalance and a clear congestion risk. Linerlytica warns that such a closure would lead to a short-term tightening in vessel supply and box equipment, forcing carriers to reconfigure services and likely clogging Asian ports.

Financially, this disruption compounds existing pressures. The earlier Red Sea detour, which lasted nearly two years, had a clear positive impact on the P&L. It triggered a rebound in container rates and liner profit margins after the pandemic peak. That detour absorbed around 6% of global fleet capacity, providing a temporary boost to rates. Now, the Hormuz crisis threatens to reverse that benefit by tightening supply in a different region.

The strategic dilemma for carriers is now acute. Returning to the Red Sea offers a 3,000 nautical mile savings and roughly 10 days of sailing on key Asia–Europe routes, which would free up significant vessel capacity and lower fuel costs. However, the new threat landscape makes that return risky. Iran has explicitly threatened to target the Red Sea corridor, framing it as a retaliatory zone. This creates a new, potentially higher risk premium for any vessel that re-enters.

The recent market reaction shows the volatility this introduces. In late February, as tensions escalated, major carriers like Maersk, Hapag-Lloyd, and CMA CGM paused future Trans-Suez sailings and re-routed via the Cape of Good Hope. This reversal of plans, just as a return to the Red Sea was being discussed, highlights the fragility of any operational decision. The bottom line is that carriers face a costly choice: remain in a longer, more expensive detour, or navigate a shorter route that now carries a heightened security risk and potential for further disruption.

Scenarios and Catalysts

The trajectory of global shipping flows now hinges on a volatile set of variables, with two primary catalysts dictating the path forward. The immediate, more severe risk is the status of the Strait of Hormuz. Its closure, declared by the Iranian Revolutionary Guard Corps, has already stranded over 130 container ships. The key question is whether this closure is a tactical move or a strategic blockade. Iran's UN envoy has stated the country is not going to close the Strait of Hormuz, framing it as a right to self-defense. Yet the IRGC's stance is clear: the strait is closed. This contradiction creates a high-stakes uncertainty. The reopening of this chokepoint, which handles roughly 10% of the global container fleet, is entirely dependent on a de-escalation between Iran and Western powers. Until that happens, the detour via the Cape of Good Hope will remain the default, locking in higher costs and congestion.

The second, and perhaps more decisive, catalyst is the Houthi response. The Red Sea corridor was a lifeline during the earlier conflict, but its return is now in serious doubt. The recent escalation has weaponized the trade lanes further. Iran has explicitly threatened to target the Red Sea, framing it as a retaliatory zone due to the presence of U.S. naval assets like the USS Gerald R. Ford. This creates a direct and credible risk for any vessel that re-enters. As analyst Peter Sand noted, the repercussions of the joint military operation by the US and Israel against Iran and subsequent retaliatory action will see the further weaponization of trade and shatter hopes of a largescale return of container shipping to the Red Sea in 2026.

Carrier announcements will provide the clearest signal of risk appetite. Initial tests of backhaul services to Asia will be critical. The recent reversal by major lines like Maersk, Hapag-Lloyd, and CMA CGM, who paused future Trans Suez sailings and re-routed via the Cape, shows how quickly plans can change with a security threat. If the Houthis resume attacks, that decision will be cemented, locking in the detour costs for the remainder of the year. The bottom line is that the Red Sea return is now unlikely, per analyst Sand. The new reality is one of overlapping chokepoints and heightened risk, where the path of least resistance-though most expensive-will likely prevail until the broader regional conflict shows signs of cooling.