Most buyers compare 1688 agent fees but forget shipping. A $200 item with 5% fee ($10) is great — until you realize shipping to US is $40/kg via air, or $15/kg via sea (60+ days). On a 2kg parcel, shipping can dwarf the service fee. This article benchmarks 5 agents on 3 weight tiers (2kg / 5kg / 10kg) across 7 destinations, with each country’s de minimis customs threshold included so you can spot when your order will trigger duties. All rates are from each agent’s official shipping calculator or pricing page (2026-09 verified).
1. US shipping: $40/kg air, $15/kg sea — BuckyDrop is cheapest for bulky
For a 2kg parcel to the US the per-kg spread between agents is wide. Punched into the extension, Supplyia quotes about ¥86 of freight (≈$12) on its cheapest air line, BuckyDrop about ¥176 (≈$25), Superbuy about ¥196 (≈$28). CSSBuy and Oopbuy come in above that. On a 5kg parcel the gap widens further, and Oopbuy applies a fixed 1.6x markup over its own forwarder estimate, which makes it the priciest option on anything bulky. Before comparing prices, check whether an agent even quotes a line for your cargo class (general / battery / liquid / brand) — several agents block or surcharge some of them. Sea freight runs roughly a third of air cost but takes 50–80 days. US de minimis is $800 per day per recipient (Section 321), so sub-$800 orders usually clear duty-free.
2. EU shipping: the €150 de minimis is gone — every parcel now has duty
On 2026-07-01 the EU abolished the €150 de minimis for all non-EU imports. Every parcel now pays a fixed ~€3 customs handling fee plus the normal VAT (19–25% depending on country), calculated on (item + shipping + service fee). For a €150 order this adds roughly €35–€45 in total — not catastrophic, but no longer "free." Whether the tax is collected upfront depends on the shipping line, not the platform: duty-prepaid (DDP) lines bundle it into the freight, while standard lines leave it to the destination. Availability differs by destination, so the extension only offers the lines an agent actually quotes for your parcel.
3. JP / KR / AU / UK: smaller markets, fewer routes, higher per-kg
Japan is the most competitive lane — dense 1688 consolidation routes run through Tokyo and Osaka. A 2kg parcel via the cheapest agent line lands around ¥1,800–¥2,400 (~$12–$16). Korea is similar but with fewer daily departures. The UK is expensive: 2kg air typically £20–£28; sea is £10–£14/kg but takes 70+ days. Australia is the costliest — 2kg air averages A$50–A$65 with slow consolidation. De minimis: JP ¥10,000 / KR ₩200,000 / UK £135 / AU A$1,000. For these lanes more than any other, check the live quote in the extension — route availability, not the headline rate, decides who can serve you at all.
4. Sea vs air: when 60 days is fine
Sea freight is roughly 1/3 the cost of air, but adds 50–80 days and a $5–$15/kg "consolidation fee" on top of base rate. It only makes sense when (a) order value is high enough that shipping % is small, or (b) you are restocking inventory and 2-month lead time is fine. CSSBuy and BuckyDrop have the most predictable sea routes. For one-off gifts or samples, air is the only realistic option. None of the 5 agents offer guaranteed sea delivery in less than 50 days.
5. The hidden cost nobody mentions: parcel consolidation fees
When your 1688 orders arrive at the agent warehouse as separate parcels, the agent merges them into one international shipment. The handling, per-inbound QC and repacking all vary by agent: BuckyDrop, for example, charges ¥9.9 per fulfilled parcel plus ¥2 per item once a parcel carries more than 5 pieces, and Superbuy charges its own per-item QC rate. On a 10-SKU order pulled from 10 different 1688 sellers — a common dropship scenario — these stack up before any international shipping is quoted. Fewer inbound parcels means fewer handling charges, so order from one seller where you can and use 1688 official consolidation-warehouse features to merge SKUs.