Sea-Intelligence estimates container vessel delays are tying up 8.5% of the global fleet, roughly 3 million TEU, according to reporting published September 28. Global schedule reliability fell below 50% in August, with late vessels averaging 6.8 days behind schedule.

That 6.8-day figure applies only to vessels arriving late. It is not a number to add to every purchase order, and it does not cover the steps between port arrival and sellable FBA inventory.

How Long Shipping Delays Could Last

The Loadstar attributes the capacity figures to Sea-Intelligence. Splash covered a seven-to-ten-month recovery scenario based on past congestion episodes.

Both publications report the same underlying research rather than independent measurements. The scenario could change as weather and port conditions change.

Stop treating congestion as something that resolves after one holiday or storm. Your next reorder needs a route-specific check even if the current shipment eventually clears.

Why More Scheduled Sailings Can Signal Worse Delays

Sea-Intelligence's September 23 Golden Week analysis explains an apparent contradiction. Scheduled Asia-North Europe capacity over four weeks hit 1.5 million TEU, 27% above a year earlier, partly because delayed sailings accumulated alongside regular departures.

That matters when a forwarder cites a busy schedule as evidence space is plentiful. Several departures in one week can reflect earlier disruption rather than available capacity.

Ask for the actual vessel, voyage, origin terminal, transshipment plan, and latest cutoff. Distinguish a booking confirmation from confirmed loading. If the route changes, request an updated arrival estimate and identify which downstream appointments need to move.

How to Forecast When Inventory Becomes Sellable

Work backward from the date you need available stock for each important SKU. Include unloading, customs clearance, inland transport, receiving, and any prep required before sale. Keep a normal case and a delayed case rather than one precise date.

Compare those dates against usable inventory and expected daily demand. Exclude damaged, reserved, or unavailable units from stock cover. A warehouse balance can look comfortable while units actually available to customers run short.

Review promotions against that calculation. If your delayed case creates a stockout, cutting a planned discount may protect more contribution than paying for emergency freight after a campaign has accelerated demand.

When Airfreight Is Worth the Premium

Expedited shipping should close a defined gap, not become the reflex response to every late vessel.

Take a product selling 20 units a day with $8 contribution before emergency freight. A 10-day stockout exposes 200 orders and up to $1,600 of contribution.

Flying 200 units at an extra $4 per unit costs $800, leaving roughly $800 in benefit. Flying all 2,000 units in the purchase order costs $8,000 under the same assumptions.

Use your actual demand, freight quotes, handling costs, and receiving dates. Airfreight that lands quickly but misses prep or warehouse appointments may not prevent the stockout you paid to avoid.

Set Inventory Triggers Before Q4 Peak

Establish a latest acceptable loading date and a minimum stock-cover threshold for your highest-contribution products. Agree in advance who can authorize a route change, a partial air shipment, or a promotion adjustment.

Request quotes separating freight, local handling, and potential storage charges, with quote validity and delivery assumptions recorded.