Xeneta has reported that US and Israeli military strikes against Iran have ended near-term prospects of a container shipping return to the Red Sea, prolonging a Cape of Good Hope diversion that has reshaped east-west ocean capacity since late 2023.

The Oslo-based ocean freight analytics firm flagged the strikes as a fundamental break with the cautious optimism carriers had expressed in recent months over a gradual normalization of the Bab el-Mandeb chokepoint, where Houthi attacks on commercial shipping had forced most ocean lines to suspend transits.

What does this mean for container capacity?

The Cape of Good Hope diversion lengthens average voyage distances on the Asia-Europe tradelane, the world's largest container shipping lane by volume. Vessels routing around southern Africa add significant transit time per round trip compared with the Suez Canal route, absorbing available tonnage and tightening schedule reliability across the major east-west services.

Carriers that had been signaling possible Red Sea transits in recent months will now continue routing around the Cape, keeping the capacity-draining effect in place. Shippers, forwarders and beneficial cargo owners had been operating on a longer, costlier routing as the new baseline; the latest escalation removes any near-term expectation of a return to the pre-2024 pattern.

Who is most exposed commercially?

The Asia-Europe tradelane carries the largest absolute volume affected. The top ocean alliances — 2M, Ocean Alliance and THE Alliance — operate the bulk of east-west capacity and govern when and how normal Red Sea transits resume. Major lines including Maersk, MSC, CMA CGM, Hapag-Lloyd, ONE, COSCO, Evergreen and HMM have all maintained Red Sea suspensions for an extended period.

The Trans-Pacific Asia-US East Coast trade faces a parallel effect. The all-water route via the Panama Canal has been absorbing some of the diverted tonnage, with major US East Coast ports handling extended voyage schedules from China, Vietnam and South Korea.

What are the consequences for shippers and forwarders?

Shippers in automotive, retail, chemicals and pharmaceuticals continue to absorb higher unit transport costs and longer lead times. Freight forwarders report ongoing friction in annual contract negotiations, as carriers resist repricing downward while the Cape routing supports elevated spot rates. Beneficial cargo owners reliant on lean inventory models must continue holding buffer stock to absorb schedule variability.

Insurance and war-risk premiums, which had begun to ease as Red Sea attacks diminished, are likely to climb back toward the levels seen in early 2024, when underwriters priced Bab el-Mandeb transits as a high-risk corridor. Bunker fuel costs on the longer Cape route compound the effect, particularly if crude prices respond to Middle East tensions.

What is the freight market signaling?

The persistence of the Cape diversion extends a multi-quarter period of constrained effective capacity on the largest east-west tradelanes. With carriers unlikely to add newbuild tonnage fast enough to offset the routing penalty, the supply-demand balance remains tighter than the headline vessel orderbook suggests.

Spot and short-term contract rates on the Asia-Europe and Trans-Pacific trades have held well above pre-crisis levels for an extended period. Industry observers have noted that any further escalation involving Iranian assets in the Gulf of Oman or Strait of Hormuz would compound the disruption, opening a second diversion risk on top of the Red Sea closure.

When can carriers realistically return?

Xeneta's analysts indicated that any return to the Red Sea would require sustained de-escalation and clear security guarantees for commercial shipping. Until then, the Cape of Good Hope remains the default east-west routing, with carriers expected to maintain the diversion into 2026.

For shippers preparing peak season sourcing and contract renewals, the message is straightforward: treat the Cape routing as the structural baseline, secure capacity early, and accept that geopolitical risk — not just fuel, port congestion or freight demand — is now a permanent input to east-west container shipping costs.