Air freight from China costs several times more per kilogram than ocean freight but moves your goods in days instead of weeks. Ocean is the default for production runs; air is the right call for launch inventory, samples, high-value-per-kilogram products, and any stockout that would cost you more than the freight bill. The useful decision is not "which mode" but "which units go by which mode" — and that requires understanding how each channel actually prices your shipment.

How Each Mode Charges You

They are priced on entirely different logic, which is why the same pallet can look cheap one way and absurd the other.

Air: chargeable weight

Airlines charge the greater of actual weight or volumetric weight, calculated from your carton dimensions. Light, bulky products — a foam-packed consumer device, an inflatable, a plastic housing — get billed on volume, and the quote comes back far above what the scale says. Compressing packaging volume is the single biggest lever on an air bill.

Ocean: container or cubic meter

A full container load (FCL) is a flat rate for the box, whether you fill it or not, so cost per unit drops steeply as you approach capacity. Less than container load (LCL) is priced per cubic meter, and it comes with a hidden penalty: consolidation and deconsolidation add days at both ends and multiply the handling fees. There is an awkward middle zone where LCL is expensive enough that a small FCL container, or air, wins outright.

Transit Time: Count Doors, Not Ports

Quoted transit times measure port to port or airport to airport. Your product needs door to door, and the difference is substantial:

  • Air, door to door: typically about a week to ten days once you add factory pickup, export clearance, the flight, US customs release, and final delivery. Express courier service on small shipments can be faster still.
  • Ocean, door to door: typically five to eight weeks for the West Coast and longer for East Coast routing, once you add drayage to the origin port, vessel booking cutoffs, sailing time, port congestion, customs, and inland trucking. LCL adds a week or more.

Add production lead time in front of both, plus Chinese holiday shutdowns, and an ocean-shipped order can be four months from purchase order to warehouse. Founders who plan against the sailing time alone are the ones who miss their launch date.

Landed Cost, Not Freight Cost

Comparing a freight quote to a freight quote misses most of the money. Build a landed-cost-per-unit number that includes:

  • Freight itself, plus fuel and security surcharges.
  • Customs duty based on your HTS classification, plus any additional tariffs — see US import duties and tariffs on products made in China.
  • Customs broker fees, entry filing, and for ocean the importer security filing.
  • Port or airport handling, terminal charges, and demurrage risk if you clear slowly.
  • Drayage or trucking to your warehouse or fulfillment center.
  • Cash tied up: ocean means paying for goods that sit on a vessel for weeks.

Which of those costs you carry depends on your Incoterm — the difference between EXW, FOB, and CIF quotes changes who pays for what and where your risk begins. Our guide to FOB vs EXW vs CIF is worth reading before you compare two supplier quotes that are not comparable. All of it flows into your product pricing math.

When Air Freight Earns Its Premium

  • Launch inventory. Getting the first units to customers, reviewers, or a crowdfunding backer list on schedule is usually worth more than the freight delta.
  • High value density. Electronics, medical devices, and instruments with a high price per kilogram absorb air freight as a small percentage of revenue.
  • Restocking a stockout. A bestselling item that is out of stock loses ranking and momentum — see selling a new product on Amazon FBA.
  • Samples and pilot builds. Never put engineering samples on a ship; the schedule cost of a five-week feedback loop is enormous.
  • Anything still changing. If a design revision is likely, small air shipments keep you from owning a container of the old version.

When Ocean Is Clearly Right

Steady replenishment of a proven product, heavy or bulky goods, low-margin items, and any volume large enough to approach a full container. Once your sales are predictable enough to forecast six to eight weeks out, ocean is where your margin lives.

The Practical Answer: Split the Shipment

Experienced importers rarely pick one mode. A common pattern: air a small first tranche to start selling, testing, and reviewing while the bulk of the order sails; keep an air-freight safety stock plan for the moment a product outsells the forecast. On repeat orders, air the amount that covers the ocean transit window and ship the rest by sea.

Whatever you choose, do not ship unverified goods. A pre-shipment inspection before the container is sealed is far cheaper than discovering defects after landing — see AQL inspection, and make sure you know whether you are dealing with a real factory in the first place, per factory vs trading company. If tariffs and transit are pushing you to reconsider geography entirely, compare manufacturing in China vs the USA. More on sourcing lives in our overseas manufacturing hub.

Working out how to get your first production run into the US without blowing the launch date or the margin? Contact Projects House and we will help you plan production, packaging volume, and shipping as one decision.