Transit Time Differences
Transit time is one of the most significant differences between ocean freight and air freight when importing goods into Canada.
- Ocean freight typically requires 4–6 weeks from factory departure to final warehouse delivery
- Air freight generally delivers cargo within 3–7 days
A typical shipment moving from China to Vancouver may spend:
- 18–22 days at sea
- Several days in customs clearance
- Additional time for inland transportation
While ocean freight offers lower transportation costs, the longer transit cycle can have a significant impact on inventory management and cash flow.
The Impact on Inventory Planning
Longer transit times require businesses to hold additional inventory to maintain product availability while shipments are in transit.
- Higher safety stock requirements
- Longer replenishment cycles
- Greater exposure to supply chain disruptions
To avoid stockouts, many importers maintain several weeks of extra inventory while waiting for ocean shipments to arrive. These additional inventory requirements often create costs that are overlooked when comparing freight options.
Why Carrying Costs Matter
Inventory carrying costs represent a substantial expense that should be considered alongside transportation rates when evaluating freight decisions.
- Capital tied up in inventory
- Warehousing and storage expenses
- Inventory insurance costs
- Product obsolescence and depreciation risk
For high-value products, inventory carrying costs can sometimes exceed the transportation savings generated by lower-cost ocean freight services. Looking only at freight rates without considering inventory costs can lead to misleading conclusions about total supply chain expenses.