Pôles logistiques du sud de la Chine : SZX, CAN et HKG pour le fret aérien

Three international airports sit within 150 kilometers of each other in southern China: Shenzhen Bao’an (SZX), Guangzhou Baiyun (CAN), and Hong Kong International (HKG). Together they handle a large share of the region’s air freight, but they are not interchangeable. The right hub depends on where your cargo starts, where it is going, and what it contains. This guide compares the three on the factors that actually change your shipment: customs, capacity, transit time, and cost.

What does each hub do best?

Each airport has a distinct strength:

• SZX (Shenzhen Bao’an) is the factory-adjacent export hub. Cargo from the Shenzhen électronique belt clears export customs locally and boards fast.
• CAN (Guangzhou Baiyun) is the capacity hub. It runs heavy belly cargo on domestic feeders and broad international services, with strong volume economics.
• HKG (Hong Kong International) is the connectivity hub. It offers the widest route network, high frequency, and bonded transshipment for global consolidation.

The first question is not which airport is best, but which one fits your cargo’s origin and destination. Our SZX freight forwarding guide covers the Shenzhen option in detail.

Discover why Guangzhou has become China’s e-commerce air freight hub.

How do customs and export rules differ?

This is where the hubs differ most for a China-origin shipper:

• SZX and CAN are mainland China airports. Export customs declaration is a domestic process, fast and predictable for standard goods. Import clearance happens on the mainland side, with mainland duties.
• HKG is a Special Administrative Region with its own customs regime. Goods move under bonded rules, transshipment is flexible, and there is no mainland import duty on pure transshipment. But moving cargo between mainland and HKG adds a cross-border leg and its own clearance.

For freight moving from mainland factories, exporting via SZX or CAN keeps the process in one jurisdiction. For global consolidation and rare destinations, HKG’s network wins.

Which hub has better capacity and frequency?

Hong Kong generally has the deepest network: more destinations, more frequencies, more freighter operators. Guangzhou carries the largest belly capacity on widebody passenger routes and strong domestic feeders feeding international flights. Shenzhen has a dedicated cargo area with solid freighter service, growing fast, but its network is still thinner than HKG’s on long-haul destinations.

The practical effect: a destination with daily HKG flights may only have weekly SZX flights. If your schedule is tight, the network matters more than the warehouse distance.

How does transit time compare?

Transit time has two parts: time to the airport and time on the plane.

• Cargo already in Shenzhen reaches SZX in hours, with no cross-border step.
• Cargo in Guangzhou feeds CAN directly.
• Cargo from either mainland city routed through HKG adds a trucking leg, border clearance, and a second handling point, usually a day or more.

For time-sensitive electronics, the shorter ground leg at SZX or CAN often beats the faster airline schedule from HKG. Our sensitive electronic components shipping guide covers how handling steps affect sensitive cargo.

How do costs compare?

The headline airline rate is only part of the cost:

• SZX and CAN export from mainland: one jurisdiction, no cross-border truck, competitive airline rates on served lanes.
• HKG routing: often lower airline rates on the international leg, offset by cross-border trucking, border clearance, and extra handling charges.

The honest comparison is total cost to the destination, and for many China-origin shipments that favors the mainland hub. Hong Kong wins the total-cost comparison when the destination needs a route only HKG serves.

What about sensitive and battery cargo?

All three hubs handle electronics and lithium batteries routinely, but the flows differ. Shenzhen’s cargo infrastructure is built for the local electronics industry, including battery acceptance and magnet testing close to the factories. Guangzhou handles high volumes with standard DG procedures. Hong Kong adds a transshipment layer that can be useful for consolidating battery cargo from multiple origins, but the extra leg also adds handling. Our IATA DGR guide explains the documents any of the three hubs will check.

How do you choose?

Work through four questions:

1. Where does the cargo start? Factory location decides the cheapest ground leg.
2. Where is it going? The destination’s flight frequency decides whether the network matters.
3. What is inside? Batteries and magnets need a hub with proven acceptance flow.
4. How tight is the schedule? Urgent cargo favors the shortest ground leg.

Foire aux questions

Which is better for electronics, SZX or HKG?

For cargo made in the Shenzhen electronics belt, SZX usually wins on speed and simplicity because export happens locally. HKG wins when the destination needs a route SZX does not serve.

Is HKG cheaper than CAN or SZX?

Not necessarily. HKG airline rates can be lower, but the cross-border truck and extra handling often erase the difference. Compare total landed cost, not the rate card.

Can I consolidate cargo at one hub for multiple countries?

Yes, and HKG is strong at that because of its bonded transshipment. Mainland hubs can consolidate too, but the export declaration covers the whole consolidated shipment.

Do the hubs treat battery cargo the same way?

The rules are the same IATA rules, but the acceptance flow differs. Confirm battery acceptance and the magnet test with the forwarder at the chosen hub before booking.

Conclusion

SZX, CAN, and HKG are three solutions, not three prices for the same service. Choose by origin, destination, content, and schedule: factory-adjacent SZX for fast electronics export, capacity-rich CAN for volume, and network-deep HKG for global routes and transshipment. The hub is a decision, not an assumption.