The choice between air and sea freight is often framed as either-or, fast and expensive versus slow and cheap. In practice, many experienced Shopify sellers use both at once, splitting a single inventory order so a portion arrives quickly by air while the bulk of it follows more cheaply by sea. This hybrid approach balances the two extremes rather than fully committing to either one.

Here's how combining air and sea freight actually works, and when it makes sense for a Shopify store sourcing from China.

Why Combine Air and Sea Freight

Air freight from China typically arrives in days, sea freight typically takes weeks, and the cost difference between them is significant. Relying entirely on sea freight risks a stockout if demand is stronger than forecasted or if reordering happens later than ideal. Relying entirely on air freight for regular inventory is often prohibitively expensive at scale. Splitting an order captures the benefit of both, speed where it's needed, cost savings on the bulk of the volume.

What Happens Without This Strategy

How to Decide the Split

The right split between air and sea depends on current stock levels, sales velocity, and how much runway exists before a stockout. A common approach is to air-ship a smaller portion sized to cover the gap until the larger sea shipment arrives, essentially using air freight as a bridge rather than the primary method. This requires reasonably accurate demand forecasting to size the air-shipped portion correctly.

Coordinating Two Shipments to One Warehouse

• Confirm the warehouse can receive staggered shipments — check that your fulfillment partner can process two separate arrivals of the same product without confusion
• Track both shipments separately — keep clear visibility on each shipment's status so inventory planning accounts for what's actually arrived versus still in transit
• Plan for a brief inventory gap if needed — even with a split strategy, timing isn't always perfect, so build in some buffer where possible
• Update Shopify inventory counts as each shipment lands — avoid showing stock as available before it's actually been received and processed at the warehouse

Air-Only vs Sea-Only vs Split Shipping

When Splitting Makes the Most Sense

1. Assess Current Stockout Risk

   Look at current inventory levels against sales velocity to determine whether a stockout is likely before a standard sea shipment would arrive.

2. Size the Air-Shipped Portion to Bridge the Gap

   Calculate roughly how much inventory is needed to cover sales until the sea shipment lands, and air-ship that amount rather than guessing.

3. Confirm Fulfillment Warehouse Coordination

   Make sure your fulfillment partner can track and process both shipments cleanly, so inventory counts stay accurate as each one arrives.

Frequently Asked Questions