Sea Freight vs Air Freight: Which Should You Use?
Sea freight is generally far cheaper per unit for bulk, lower-value goods but takes several weeks; air freight is faster, typically days rather than weeks, but costs substantially more per kilogram, making it better suited to urgent, lightweight or high-value shipments.
Cost differences
Sea freight is priced largely by container or cubic volume, so for heavy or bulky low-value goods it is usually the only commercially sensible option, the freight cost per unit stays manageable even for large orders.
Air freight is priced by chargeable weight (the greater of actual or volumetric weight), and the per-kilogram rate is a multiple of sea freight. For dense, low-value goods this can make air freight uneconomical; for light, high-value or time-critical goods, it's often still worth it.
Speed differences
Sea freight from East Asia to Australia typically takes 3 to 6 weeks port-to-port depending on origin and destination port, plus clearance and domestic delivery.
Air freight typically takes 3 to 7 days door-to-door once booked, making it the default choice for urgent restocks, product launches with a fixed date, or replacing a failed shipment.
When a mixed approach makes sense
Many importers use sea freight for the bulk of an order and air freight for a smaller portion to bridge a stock gap while the sea shipment is in transit, useful when demand is uncertain or when a launch date can't move.
Samples and pre-production approvals are almost always sent by air or courier given the small volume involved, even when the full order will travel by sea.
For hands-on help with this, see our freight and customs service.
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