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Air freight

When timing matters, air freight can reduce transit time — if weights, dimensions, and cargo rules are clear upfront.

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When air makes sense vs when it doesn’t

Air is the right tool when the cost of being late is higher than the extra transport and handling cost.


Air freight usually makes sense when:

  • A real deadline exists: urgent replenishment, a fixed delivery window, spares holding up production, or a missed connection that must be recovered.


  • The shipment is compact for its value: small machinery parts, electronics, prototypes, samples, or time-sensitive documents and components.


  • You can provide exact piece data: measured dimensions and weights per piece (not estimates) so pricing and airline acceptance are correct.


  • Cargo acceptability is clear early: you know whether batteries, liquids, aerosols, chemicals, magnets, or temperature control are involved.


  • You need controlled handovers: predictable cut-offs and clear “ready on” dates so the shipment can actually catch the planned uplift.

Air freight usually does not make sense when:

  • The cargo is bulky/low value: airlines price using chargeable weight (often driven by volume), so big cartons can become expensive fast.


  • The goods are uncertain or restricted: unclear composition or missing safety data can cause holds or rework at the last minute.


  • Readiness is vague: “almost ready” shipments frequently miss cut-offs, which defeats the purpose of air.


  • Receiving constraints are unknown: if nobody can receive, clear, collect, or unload on arrival, “arrived” can still mean “stuck”.


How air freight works

01

Scope the move:

confirm route (origin/destination), service scope (airport-to-airport or door-to-door), and the required delivery date.

02

Validate cargo and piece data:

confirm piece count, dimensions, weights, packaging type, and any restriction flags before booking.

03

Export handling:

arrange pickup (if required), terminal handling and screening, and airline acceptance against cut-off times.

04

Uplift:

cargo is flown on the booked routing (direct or via a hub depending on availability).

05

Arrival + handover:

arrival handling, clearance where included, then collection or final delivery as agreed.


What we need to quote (air-specific inputs)

Send what you have — we’ll tell you what’s missing. For air, the most important inputs are measured piece data and cargo acceptability.


Quote inputs checklist


  • Route + scope: 
  • origin and destination (city/airport), and whether it’s airport-to-airport or door-to-door.

  • Ready date + deadline:
  •  cargo ready date, any latest-acceptable arrival date, and receiving hours if delivery is required.

  • Pieces & packaging: 
  • number of pieces; carton/crate/pallet; stackable yes/no; fragile notes.

  • Dimensions per piece: 
  • length × width × height for each piece (include pallet base and any overhang).

  • Weight per piece:
  •  gross kg per piece (not only a total).

  • Commodity description: 
  • specific description of the goods (and HS code if you have it).

  • Restriction flags: 
  • confirm if any batteries, liquids, aerosols, chemicals, magnets, perfumes, temperature control, or pressurised items are present.

  • Documentation:
  • commercial invoice and packing list (draft is fine to start), permits/approvals if relevant, and SDS/MSDS where applicable.

  • Clearance scope: 
  • do you want us to include import clearance and delivery, or only air + airport handling?

 


If this is missing: 

Accurate dimensions per piece

What usually happens:

The quoted price can change after terminal acceptance because volumetric/chargeable weight is recalculated.


​If this is missing: 

Accurate weight per piece

What usually happens:

Handling plans and airline acceptance can change (especially for heavy single pieces).

Why dimensions matter (chargeable weight)


Common pitfalls (and how to avoid them)

Estimated dimensions/weights:

 Air pricing is sensitive to small measurement errors. Measure every piece, and measure after packing.

Hidden restricted items: 

many ordinary products become restricted because of batteries, aerosols, flammable liquids, or safety classifications. If in doubt, flag it early.

Document mismatches: 

different quantities, addresses, or descriptions across invoice/packing list can trigger customs queries and delays.

Assuming “arrival” equals “delivered”: 

arrival handling, clearance, and last-mile delivery are separate steps with separate timing and approvals.

No plan for collection/delivery: 

if a consignee cannot receive within operating hours, storage and re-handling costs can follow.

 

Common air freight routes to and from South Africa

Sterdts assists with worldwide air freight shipments to and from South Africa. Below are some of the more common routes we help clients plan and coordinate, shown as examples rather than a complete list of every route we can assist with.


South Africa to UK

A practical route for export shipments where deadline pressure, cargo readiness, and handover timing matter more than the flight itself. The smoother moves are usually the ones where dimensions, restrictions, and delivery expectations are confirmed properly before booking.

Europe to South Africa

Often used for higher-value or time-sensitive cargo where the shipment needs to move quickly but still depends on clear dimensions, weight per piece, and a realistic receiving plan. Good outcomes usually come from confirming handling scope and import requirements before uplift.

China to South Africa

A common air-freight route when timing is critical and cargo is too urgent to wait for sea freight. The biggest issues are usually accurate piece data, cargo acceptability, and having the right documents ready early enough to avoid delays at acceptance or on arrival.

South Africa to Australasia

Common for urgent shipments moving to Australia and New Zealand where the route only works well if cargo details, handover timing, and receiving arrangements are clear from the start. On this type of movement, missing or unclear piece data can quickly affect pricing, routing, and airline acceptance.

What happens next


You send the quote inputs

from the checklist above (even if some are draft).

We sanity-check piece data and restrictions

and ask only the questions needed to price/book correctly.

We issue a quote

with the agreed scope and clearly stated assumptions (what’s included, what’s not).

On acceptance, we coordinate cut-offs

for pickup/terminal acceptance and document deadlines.

We manage uplift to handover

and escalate quickly if a constraint changes (readiness, restrictions, or receiving).

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