There is no universally cheapest shipping mode out of China — there is only the cheapest mode for a given weight, volume and deadline. Buyers lose money in both directions: paying air rates on cargo that could have waited, and waiting five weeks for goods that were losing sales every day. Here is the arithmetic that decides it.
Start with volumetric weight, not actual weight
Air carriers charge on whichever is greater: actual kilograms, or volume converted to kilograms. For air freight the standard conversion is length x width x height in centimetres divided by 6,000. A carton of 60 x 40 x 40 cm is 16 kg volumetric — so if it actually weighs 9 kg, you still pay for 16. Dense, small, high-value goods suit air. Bulky and light goods almost never do.
When air freight is the right answer
Air is not only for emergencies. It is genuinely the cheaper total cost in several normal situations.
- Under roughly 300-500 kg chargeable weight, where sea fixed costs dominate
- High value per kilogram, where tied-up cash costs more than the freight premium
- Launches, restocks of a proven best-seller, and seasonal windows
- Samples and pre-production units — always air, never worth the wait
When LCL makes sense
LCL (less than container load) means you buy space in a shared container, priced per cubic metre. It suits roughly 2 to 13 cubic metres. Below 2 cbm the fixed port and destination charges make the per-unit cost ugly. The thing buyers underestimate is time: LCL needs consolidation at origin and deconsolidation at destination, which typically adds one to two weeks over FCL, plus a higher risk of damage from shared handling.
When FCL wins
Once you are near 13-15 cbm, a 20ft container is usually cheaper per cubic metre than LCL, and you get a sealed box that nobody else touches. A 40HQ holds roughly 67-76 cbm of packed cargo. If you are ordering from several factories, the right move is often to consolidate their cargo into one container rather than ship three separate LCL lots — it is normally cheaper and always simpler at customs.
The charges buyers forget to compare
A freight quotation is not comparable until it is priced door to door. Ask what is included and what is not.
- Origin charges: pick-up from factory, export customs, documentation, THC
- Destination charges: THC, deconsolidation for LCL, customs clearance, delivery
- Duty and VAT in your market, based on the correct HS code
- Demurrage and detention free days — the most common surprise invoice
- Whether the rate is all-in or subject to fuel and peak-season surcharges
A simple way to decide
Work out the landed cost per unit for each mode, not the total freight bill. Divide the full door-to-door cost by the number of saleable units and compare that against your selling price. A shipping mode that looks expensive in total is often trivial per unit — and one that looks cheap can quietly eat a whole margin on a bulky product.
How we quote
We hold competitive rates on air, FCL and LCL out of South China, and we consolidate multi-supplier cargo in our Guangzhou warehouse so you ship one clean load with one document set. Send Jay your route, cargo type and rough volume on WhatsApp at +86 139 2274 9211 and you will get all three options priced side by side.
Want this sourced for you?
Our Guangzhou team shortlists verified factories, inspects production and consolidates your cargo — door to door if you need it.
Talk to Jay