Choosing between sea and air freight when importing from 1688 is a math problem, not a preference. The answer changes based on what you are shipping, how much, and when.
Two Shipping Modes, Two Completely Different Cost Equations
Sea Freight (LCL) | Air Freight | |
|---|---|---|
Rate | 6,000–20,000 VND/kg | 45,000–80,000 VND/kg |
Transit time | 10–20 days | 4–7 days |
The gap exists because of flight frequency, fuel cost per ton, and payload limits. A cargo flight carries 50–100 tons; a container ship moves thousands. That physics constraint is permanent.
One thing operators frequently miss: LCL sea freight bills by either cubic meters or kg, whichever produces the higher number. Bulky, lightweight goods (inflatable products, foam items, plastic storage containers) often get charged by volume even when they weigh very little. Know which applies to your shipment before you compare costs.
This article covers sea vs air only. Road freight through the China-Vietnam border is a separate discussion.
Actual Transit Time: Warehouse to Your Door
The headline number is not the full picture.
Sea freight breakdown:
- Consolidation at China warehouse: 1–3 days
- Vessel transit (varies by departure port): 5–12 days
- Customs clearance at Cat Lai or Hai Phong: 1–3 days
- Domestic delivery: 1–2 days
- Total: 8–20 days
Air freight breakdown:
- Consolidation and flight: 2–4 days
- Customs clearance at Noi Bai or Tan Son Nhat: 1–2 days
- Domestic delivery: 1 day
- Total: 4–7 days
A 10–14 day gap can represent one full inventory turnover cycle, which matters a lot for trend-driven SKUs with a short sales window. Build in an extra 3–5 days for Cat Lai port congestion in Q4, customs holds, and Tet border slowdowns.
Customs Clearance: Sea vs Air
Sea freight (formal import): Requires a Bill of Lading, commercial invoice, and packing list. Physical inspection rates on containers are relatively low when the HS code is declared correctly.
Air freight (consolidated shipment): Processing is faster, but individual parcels in consolidated air shipments face higher inspection rates than container cargo.
Categories that get flagged on air: lithium batteries, electronics with WiFi or Bluetooth, and cosmetics without Vietnamese CO/CQ certification. If your product falls into any of these, a customs hold or return shipment is a real outcome, not a theoretical one. Sea freight gives you a more predictable clearance path for sensitive categories, despite the longer transit.
Choosing by Product Category
Product type | Order size | Urgent? | Recommendation |
|---|---|---|---|
Fashion, clothing, footwear | Under 50 kg | Yes | Air |
Fashion, clothing, footwear | Over 100 kg, basic restock | No | Sea |
Homeware, plastic goods, toys, mini furniture | Any | No | Sea (almost always) |
Cosmetics, skincare | Any | Verify CO/CQ first | Sea (safer) |
Phone accessories, cables (no battery) | Small, high-velocity | Yes | Air |
Phone accessories, cables (no battery) | Large restock | No | Sea |
Fashion and clothing: light by weight, but seasonal timing matters. Under 50 kg or during a trend peak, pay for air. Large basic restocks with no date pressure, use sea.
Homeware and plastics: bulky, heavy, low value per kg. Air freight on these often costs nearly as much as the goods themselves. Sea wins here almost without exception.
Cosmetics: confirm Vietnamese certification before choosing the channel. Sending unregistered products by air is a reliable way to get a shipment held at the airport.
Phone accessories and cables (no battery): high value-to-weight ratio makes air sensible. Keeping capital moving matters more than saving on freight.
Compare sea and air rates against other 1688 shipping costs before committing to a shipment.
When Air Freight Is Worth the Premium
Run the numbers before dismissing air on sticker price alone.
Concrete example: 30 kg of phone accessories, goods value 18 million VND. Air freight runs about 1.05 million VND more than sea. The shipment arrives 12 days earlier. If daily revenue at peak is 500,000 VND at 30% margin, you recover 1.8 million VND in those 12 days. The premium pays itself.
Simple formula to apply to your own SKUs:
(Air cost - Sea cost) vs. (Daily revenue × Days faster × Margin)
If the right side is larger, air is the rational choice.
Three situations where air wins regardless: the product is actively going viral, you are already stocked out with live orders waiting, or you are within two weeks of a major sales season. To get a reliable margin number for the formula, use your actual landed cost breakdown rather than a rough estimate.
FAQ: Sea and Air Freight from 1688
How long does sea freight from Guangzhou to Hanoi and Ho Chi Minh City take?
Guangzhou to Ho Chi Minh City via Cat Lai: roughly 8–14 days total. Guangzhou to Hanoi via Hai Phong: 12–18 days due to the longer domestic leg after port clearance. Q4 adds 3–5 days on average.
What is the current air freight rate from 1688, and does it include customs clearance?
Most consolidated air services quote 45,000–80,000 VND per kg. Whether customs clearance is included depends on the provider. Confirm before booking: some services quote door-to-door, others quote to the airport only and customs is billed separately.
Should I use sea or air for fashion and clothing from 1688?
Under 50 kg or timed to a specific trend window, use air. Large basic restock with no hard deadline, use sea. The crossover for most fashion categories sits around 50–80 kg with a 10-day buffer before your target sell date.
Is sea freight customs more complicated than air? Can a shop owner handle it?
Sea freight formal clearance requires more documents (B/L, invoice, packing list, sometimes a C/O). Most operators work with a freight forwarder or sourcing agent who handles customs on their behalf. Air consolidated shipments are managed by the consolidator. You can compare what different 1688 order and shipping services include before choosing a partner.
Can I split one large order, part by sea and part by air?
Yes, and it is a practical strategy. Send a small initial batch by air to hit the trend opening or season start, then move the bulk of the restock by sea to keep landed cost in check. It adds some coordination overhead but works well for high-velocity SKUs where timing and cost both matter.
Ordinex is building sourcing and order tools for operators importing from 1688 at volume. Scout (product research and supplier verification) and Orders (import workflow management) are currently in private beta. If you want early access, visit ordinex.cc.