Air Freight vs Sea Freight: Which is Cheaper to Import?
Compare air freight vs sea freight: estimated rates, transit times, break-even point of 20 kg or 0.3 CBM, and two complete rupiah cost calculation simulations.
The short answer: sea freight is cheaper for large shipments, air freight is cheaper for small shipments. The break-even point is around 20 kg billable weight or 0.3 CBM. Below that figure, the minimum cost of sea cargo makes air both more economical and much faster. Above that figure, sea can be 50%-70% cheaper, with the consequence of a transit time of 25-40 days compared to 5-10 days by air.
The problem is, many novice importers choose modes based on habit, not calculation. This article gives you a comparison table, a break-even point you can calculate yourself, and two examples of complete dollar calculations so that your decision is based on numbers.
How Air vs Sea Rates Work
The basic difference between the two is not just the amount of the rate, but also the basis of calculation.
- Air freight is billed per kilogram of billed weight, which is the largest value between the actual weight and the volume weight. Air volume weight = (L x W x H in cm): 5000. This means that 1 cubic meter of space is equivalent to 200 kg of bills.
- Sea freight LCL (Less than Container Load) is billed per CBM aka cubic meter. CBM = (L x W x H in cm): 1,000,000. Ocean cargo is much more tolerant of large volumes of goods.
- Sea freight FCL (Full Container Load) is billed per full container – 20ft or 40ft – at a fixed price regardless of contents. This is the cheapest option per unit if your shipment reaches tens of cubic meters.
Air Freight vs Sea Freight Comparison Table
| Aspect | Air Freight | Sea Freight (LCL) |
|---|---|---|
| Bill basis | Per kg collectible weight | Per CBM (cubic meter) |
| Estimated rates from China | Rp 65.000 – 110,000 per kg | Rp 4.500.000 – 7,000,000 per CBM |
| Estimated rates from USA | Rp 250.000 – 400,000 per kg | Rp 8.000.000 – 14,000,000 per CBM |
| Minimum bill | 0.5 – 1 kg | 0.3 – 1 CBM |
| Transit time from China | 5 – 10 days | 25 – 40 days |
| Transit time from USA | 7 – 14 days | 40 – 60 days |
| Liquid goods, batteries, aerosols | Very restricted | More flexible |
| Risk of dampness and dents | Low | Higher, need strong packaging |
| Schedule flexibility | Departs almost every day | Follow weekly ship schedule |
| Suitable for | Samples, expensive items, urgent restock | Large stocks, furniture, machines, heavy goods |
All rates above are estimated market ranges which may change due to exchange rates, fuel prices, peak seasons and shipping policies. Confirm the latest rates before calculating the final budget.
Break Even Point: When Does Ocean Start Getting Cheaper
To compare fairly, assume the China-Indonesia route with air rates Rp 85.000 per kg and sea rates Rp 5.500.000 per CBM with a minimum bill of 0.3 CBM. Goods are assumed to be medium density, namely around 200 kg volume weight per CBM.
| Shipment size | Volume | Air costs | Sea costs | Cheapest mode |
|---|---|---|---|---|
| 5 kg collectible | 0.025 CBM | Rp 425.000 | Rp 1.650.000 (minimum) | Air, save Rp 1.225.000 |
| 20 kg collectible | 0.10 CBM | Rp 1.700.000 | Rp 1.650.000 (minimum) | Almost a draw |
| 50 kg collectible | 0.25 CBM | Rp 4.250.000 | Rp 1.650.000 (minimum) | Sea, save Rp 2.600.000 |
| 100 kg collectible | 0.50 CBM | Rp 8.500.000 | Rp 2.750.000 | Sea, save Rp 5.750.000 |
| 300 kg collectible | 1.50 CBM | Rp 25.500.000 | Rp 8.250.000 | Sea, save Rp 17.250.000 |
The pattern is clear. Under 20 kg, air wins hands down because the minimum sea bill has not been used. Right around 20 kg the two are evenly matched. Above 50kg, the gap widens quickly and sea becomes a tough option to argue against – as long as you have time to wait.
Example 1: Shipment of 12 Cardboard from China
An online shop owner imports household goods. A total of 12 boxes, each measuring 50 x 40 x 30 cm with an actual weight of 8 kg.
- Volume per cardboard = 50 x 40 x 30 = 60,000 cm3.
- Total volume = 12 x 60,000 = 720,000 cm3 = 0.72 CBM.
- Total actual weight = 12 x 8 = 96 kg.
- Air volume weight = 720,000 : 5000 = 144 kg. Since 144 kg is greater than 96 kg, air collectible weight = 144 kg.
- Air costs = 144 x Rp 85.000 = Rp 12.240.000.
- Sea fees = 0.72 x Rp 5.500.000 = Rp 3.960.000.
- Difference = Rp 12.240.000 – Rp 3.960.000 = Rp 8.280.000, or sea 68% cheaper.
If the value of the goods is Rp 40.000.000, choosing sea cuts logistics costs from 30.6% to 9.9% of the value of the goods. Consequently, you have to wait about a month longer – meaning capital is held up longer too. For seasonal items, that extra time can be much more expensive than the Rp 8,28 juta saved.
Example 2: One Small Cardboard 6 kg
- Cardboard dimensions 40 x 30 x 20 cm = 24,000 cm3 = 0.024 CBM.
- Air volume weight = 24,000 : 5000 = 4.8 kg. Actual weight is 6 kg greater, so billable weight = 6 kg.
- Air costs = 6 x Rp 85.000 = Rp 510.000.
- Sea fees = 0.024 CBM, but subject to a minimum of 0.3 CBM = 0.3 x Rp 5.500.000 = Rp 1.650.000.
- Difference = Rp 1.650.000 – Rp 510.000 = Rp 1.140.000, and the air also arrived about 25 days earlier.
This is the classic mistake of novice importers: thinking that sea is always cheaper, then paying three times as much and waiting a month longer for one box. You can check the billable weight of your shipment via volume weight calculator before requesting a quote.
When to Switch from LCL to FCL
As your shipping volume continues to grow, there comes a point when renting a whole container is cheaper than paying per CBM. A 20-foot container holds about 28 CBM of effective payload, while a 40-foot container is about 58 CBM. With the LCL rate Rp 5.500.000 per CBM, a load of 15 CBM already costs 15 x Rp 5.500.000 = Rp 82.500.000. At that level, the 20 foot FCL offer from the Chinese route is generally cheaper, as well as safer because your goods are not being unloaded with other parties’ cargo.
Rule of thumb: start asking for FCL quotes once your total shipment passes around 12-15 CBM, or when your goods are fragile and don’t want to mix with other people’s cargo in the consolidated warehouse.
Pay attention to Price Coverage: Door to Door or Port to Port
Two offers with widely different figures often turn out to cover different services. Port to port only covers inter-port shipping; You still have to take care of unloading, entry and ground delivery yourself. Door to door covers everything down to your address. The difference in behind-the-scenes costs can reach tens of millions of rupiah for large shipments. Always ask whether the offer includes port unloading fees, document handling, shipping handling fees, as well as ground shipping to your city.
Factors Beyond the Numbers You Should Consider
- Capital turnover. Goods that are stranded for 40 days at sea are capital that does not rotate. For thin margins with fast turnaround, air is often more profitable even though fares are expensive.
- Peak season. Approaching Chinese New Year and the end of the year, ship schedules are busy and transit times can be delayed by one to two weeks.
- Types of goods. Liquids, aerosols, lithium batteries and flammable materials are highly restricted by air, but can generally be passed by sea with the correct documentation.
- Packaging strength. Ocean cargo experiences piling, vibration and moisture for longer. Add corner protectors, silica gel, and pallets if necessary.
- Value of goods. For high value goods, insurance costs and the risk of loss for 40 days at sea need to be calculated.
- Mixed strategy. Many importers send a small portion of stock by air so they can start selling, while the rest follows by sea.
Handling Fees Remain Applicable in Both Modes
Choosing sea does not make handling costs disappear. This post is calculated from the value of the shipment, namely the price of the goods plus shipping costs and insurance, so it applies to both air and sea. Precisely because sea shipping is cheaper, the value of the shipment is lower and therefore the handling costs are also smaller – an additional benefit that is often overlooked when comparing the two modes.
The magnitude itself is not uniform. Very small value shipments only cover basic components, general shipments up to USD 1.500 use one combined post of around 19.3% of the shipment value, while above that value the calculation follows the HS code classification of goods. Bags, shoes and textile products are special categories with a higher share, and the completeness of the recipient’s identity also influences the amount. These terms are subject to change, so confirm the latest figures before submitting. In the Jastip Ali offer, we have combined all these components into one price to your address.
Checklist for Selecting Shipping Mode
- Calculate the total actual weight and total volume of all the boxes first.
- Conversion to air billable weight (: 5000) and to CBM (: 1,000,000).
- Multiply each by the going rate, then compare.
- Check the minimum sea bill – usually 0.3 to 1 CBM.
- Ask for realistic transit estimates, not just sailing times.
- Make sure your item type is permitted on the selected mode.
- Include handling fees in the total, not just postage.
- Consider a mixed strategy if your stock is needed gradually.
Request an Air vs Sea Comparison for Your Shipment
There is no single answer that applies to all submissions. Send us a list of items, number of boxes, dimensions and estimated weight, and the Jastip Ali team will create a side-by-side comparison of air and sea costs – complete with handling fees so the numbers are all-in to your address. See details of shipping rates, scope of our import services, or brand portfolio that we have covered.
Contact WhatsApp +62 821-2213-4474 or email halo@jastipali.com. One calculation before ordering can save millions of rupiah and weeks of waiting time.
