The comparison, side by side
| Ocean freight | Rail freight | Air freight | |
|---|---|---|---|
| Transit from China | Longest — measured in weeks | Middle — 7 days to Central Asia, 16–25 days to Europe | Shortest — measured in days |
| Cost profile | Lowest cost per cubic metre; the benchmark everyone else is priced against | Sits between the two — a fraction of air, a premium over sea | Highest per kilo; usually several times rail on the same lane |
| Charged by | Per container, or per cubic metre for LCL | Per container for FCL; per cubic metre for LCL groupage | Per chargeable kilo, with volumetric weight rules |
| Best for | Heavy, low-value, non-urgent cargo — furniture, ceramics, raw materials, full containers | Mid-value goods on inland routes — machinery, electronics, building materials, e-commerce restocking | High-value, time-critical or perishable — samples, spares, components holding up a production line |
| Where it delivers to | A seaport, so an inland destination needs another leg | An inland rail terminal close to many destinations — for Baku, Absheron station | An airport, almost always with a road leg and a shorter weight ceiling |
| Main risks | Port congestion, canal and routing disruption, long exposure to transit damage | Border queues, the Caspian ferry interval on the Middle Corridor, gauge change handling | Capacity crunches before peak season, dimensional and dangerous-goods restrictions |
| Cargo limits | Widest — accepts almost everything, including dangerous goods by arrangement | Broad; some sensitive categories need advance platform approval | Narrowest — weight, dimensions and battery rules bite hardest |
Transit ranges quoted for ocean and air above are indicative industry figures. The rail figures are the same station-to-station numbers we publish for our own lanes.
IMAGE SLOTContainers being handled at a terminalassets/img/guide-rail-sea-air.jpg
How to decide in four questions
- Is the cargo urgent? If a delay breaks a production line or misses a season, the answer is usually air, and the cost premium is a business decision rather than a logistics one.
- Is the cargo heavy and low value? If it is dense, non-perishable and the buyer is patient, sea almost always wins on cost.
- Where is the buyer? This is the question rail answers best. If your consignee is inland — Baku, Almaty, Tashkent, Moscow, Budapest, Duisburg — a rail terminal is often closer to them than a seaport, which removes a leg and its handling.
- Can the cargo tolerate a longer transit than air but not a sea crossing with a long month at sea? That is the rail case in one sentence.
How a landed cost is actually built up
Comparing modes on the freight line alone is the most common mistake we see. A landed cost is built from:
- Origin: factory collection, export packing, export customs declaration, terminal handling.
- Main leg: the freight charge itself, whether sea, rail or air.
- Destination: import duty and taxes, clearance, port or terminal charges, devanning, final delivery.
- Invisible: insurance, financing cost of the days the money is in transit, and the cost of a late delivery.
The cheapest freight line is not always the cheapest shipment. A slower mode raises the financing and storage cost, ties up the goods, and can cost more than the freight saved — which is exactly why air freight sells at all. Tell us the commodity, the value and the delivery deadline, and we will model the whole chain rather than one line of it.
Frequently asked questions
Is rail freight cheaper than air freight?
Yes, substantially. On the same lane rail is typically a fraction of the air cost, which is what makes it viable for mid-value cargo that cannot wait a month at sea but does not justify air. Exact positioning varies by lane and volume, so we quote it.
Is rail freight more expensive than sea freight?
Usually yes on the pure freight line, and usually yes before you count the extra land leg a seaport adds. Once a seaport shipment needs a long truck or rail leg inland, the gap narrows or closes. That is why rail is competitive for inland destinations such as Baku, Almaty, Moscow and Central Europe.
Which mode should I use for electronics?
Most electronics move by rail from China to inland destinations and by sea for large, patient replenishment orders. Air is reserved for launch stock, promotional deadlines and spares. Lithium batteries add restrictions on every mode, so tell us at the quotation stage.
Can you quote two modes so I can compare properly?
Yes. We would rather show you both and let you choose than push one. Send the commodity, volume, weight and destination, and say which deadline matters, and we will come back with a route plan for the modes that fit.
Does the Middle Corridor change the comparison?
It does on the Baku lane, where the route includes a Caspian crossing, so rail and sea are combined rather than competing. For Baku, Alat Port and Azerbaijan we book that combined routing as a single service.