Choosing between air and sea freight is one of the most important decisions in international shipping. The right answer depends on four things: how urgent the shipment is, how big it is, what it is worth and what it costs to keep stock waiting.
Speed
Air freight usually reaches the destination airport within a few days. Sea freight from Karachi takes from about two weeks to the Gulf to six weeks or more to the Americas, plus time at the ports. If the goods are needed urgently, air is the clear choice.
Cost
Sea freight is far cheaper per kilogram for large volumes. Air freight is priced on chargeable weight, while sea freight is priced per container (FCL) or per cubic metre (LCL). For heavy, low-value goods such as textiles in bulk, furniture or building materials, sea freight is usually the economical option.
Size and weight
- Small and light: express courier or air cargo
- Medium (around 2 to 13 CBM): sea LCL or air cargo, depending on urgency
- Large (above about 13 to 15 CBM): a full container is often the best value
Value and risk
High-value goods such as electronics or fashion items often travel by air because the faster transit reduces the money tied up in stock. Air freight also involves less handling, which can lower the risk of damage.
Environmental impact
Ocean shipping produces much lower emissions per tonne-kilometre than air. Many businesses now plan ahead to move more cargo by sea.
Consider a mix
Some companies send an urgent first batch by air and the rest by sea, or use sea-air routes through hubs like Dubai. A forwarder can model the options for your route.
Share your cargo details on our quote page and we will compare air and sea options for you.