How Air Freight Works: Booking to Final Delivery

How Air Freight Works: From Booking Request to Final Delivery

Air freight moves cargo through a coordinated chain of booking, collection, export handling, security screening, airline acceptance, flight operations, import clearance and final delivery. The aircraft journey is only one part. Reliable execution depends on accurate shipment data, suitable packaging, compliant documents, confirmed capacity and controlled handovers before and after the flight.

What happens during an air freight shipment?

A typical international air freight shipment passes through these stages:

Shipment information and booking request
Route and service selection
Rate and capacity confirmation
Cargo preparation and documentation
Collection or delivery to the export facility
Export handling and security screening
Airline acceptance
Build-up and aircraft loading
Flight and possible transfer
Arrival and import handling
Customs clearance and cargo release
Final delivery and proof of delivery

The exact process varies by country, airline, airport, commodity and service level. Dangerous goods, pharmaceuticals, perishables, live animals, valuable cargo and oversized freight require additional controls.

1. The booking request establishes what must be moved

An air freight booking starts with a clear description of the shipment and the result the customer needs.

A useful booking request normally includes:

Origin and destination
Requested pickup date
Required delivery date
Number and type of packages
Dimensions of each package
Gross weight
Commodity description
Declared value, when required
Stackability
Temperature or handling requirements
Dangerous-goods status
Shipper and consignee details
Customs information
Availability date and location
Delivery address and facility requirements

Incomplete information makes routing and pricing unreliable.

For example, a total weight without package dimensions isn’t enough to determine chargeable weight or confirm whether the freight will fit the intended aircraft. A general description such as “machine parts” may not reveal batteries, liquids, magnets, pressurized components or other regulated contents.

The requested delivery date also needs context. The forwarder must know whether it is a preferred target or a fixed operational deadline. A shipment needed for a production restart requires a different planning approach from replenishment stock with several acceptable arrival dates.

2. The shipment is checked before a route is proposed

The forwarder reviews the request to determine whether the freight is suitable for air transport and what constraints may affect it.

The review may cover:

Package dimensions and aircraft limitations
Actual and chargeable weight
Commodity restrictions
Dangerous-goods classification
Export and import requirements
Security-screening feasibility
Temperature-control needs
Airline acceptance rules
Airport operating hours
Ground-handling cut-offs
Customs readiness
Pickup and final-delivery access
Weekend and holiday restrictions

This step prevents a common mistake: treating a flight schedule as a complete transport plan.

A flight may appear suitable online but still be unusable because the cargo is too large for the aircraft, the airline doesn’t accept the commodity, the export facility closes before tender, or the destination cannot clear the shipment on arrival.

3. Route and service selection balance time, control and cost

Air freight isn’t a single service.

A shipment may move on:

A direct passenger flight
A direct freighter service
A connecting service through one or more hubs
A deferred or consolidated air service
A next-flight-out service
An aircraft charter
A combined road-and-air routing
An onboard courier or hand-carry service, when legally and operationally appropriate

The fastest scheduled flight isn’t always the most reliable choice.

A direct service reduces the number of handovers, but it may operate less frequently. A connecting route may offer an earlier departure while introducing transfer risk. A freighter can accept cargo that doesn’t fit through a passenger-aircraft door, but its schedule may be more limited.

Route selection should consider:

Required delivery time
Flight frequency
Number of connections
Aircraft type
Cargo dimensions
Handling requirements
Transfer time
Recovery alternatives
Customs capability at destination
Total door-to-door plan

The objective is not simply to book the earliest flight. It is to choose a route that can accept the cargo and still support the required delivery outcome.

4. The quotation depends on weight, volume and service requirements

Air freight charges commonly depend on chargeable weight.

Chargeable weight is generally the higher of:

Actual gross weight
Volumetric weight

Volumetric weight represents the space occupied by the shipment. A large, lightweight package may consume more aircraft capacity than its physical weight suggests.

A commonly used metric calculation is:

Volumetric weight in kilograms = length × width × height in centimetres ÷ 6,000

The applicable factor can vary by carrier, service and contract, so it should be confirmed for the shipment.

A complete quotation may include more than the airline freight charge. Depending on the scope, it can also include:

Pickup
Export handling
Security screening
Documentation
Customs brokerage
Airline or terminal charges
Fuel or security surcharges
Special handling
Transfer handling
Import terminal charges
Storage
Duties and taxes
Final delivery
Waiting time or special equipment

The quotation should clearly state what is included, excluded and based on assumptions.

5. Capacity must be confirmed

A rate isn’t the same as a confirmed booking.

Airline capacity can change because of passenger baggage, aircraft substitution, operational disruption, seasonal demand or restrictions on particular cargo. Large or unusually shaped pieces may require additional approval even when their total weight is modest.

The booking confirmation should identify:

Planned airline and routing
Flight or service details, when confirmed
Cargo cut-off
Booking reference
Accepted piece count
Confirmed weight and dimensions
Special handling codes
Documentation requirements
Conditions or outstanding approvals

Until capacity and acceptance conditions are confirmed, the routing remains a proposal rather than a secure movement plan.

Even a confirmed booking is subject to operational execution. Air cargo can be offloaded, delayed or rerouted. Critical shipments therefore need monitoring and a recovery plan, not only a reservation.

6. Packaging must survive the complete transport chain

Air cargo passes through warehouses, vehicles, handling systems, screening equipment, terminals and aircraft loading operations.

Packaging must protect the goods during:

Collection
Warehouse handling
Security screening
Pallet or container build-up
Aircraft loading
Vibration and movement
Transfers between flights
Breakdown at destination
Final delivery

The package should match the cargo’s weight, dimensions, fragility and handling requirements. Pallets, crates and cartons must be strong enough for the planned movement.

Labels and markings should remain visible and secure. Old or conflicting labels should be removed where appropriate.

Any instruction such as “Do Not Stack,” “Keep Upright” or “Protect from Freezing” must be communicated during booking. A label alone doesn’t guarantee that a handling requirement has been accepted or can be maintained throughout the route.

Dangerous goods require specific classification, packaging, marking, labeling and documentation. The shipper is responsible for correct classification. Undeclared or incorrectly prepared dangerous goods can be rejected and may create serious safety and regulatory consequences.

7. Documents and shipment data must agree

Air freight involves commercial, transport, customs and sometimes regulatory documentation.

Common documents include:

Commercial invoice
Packing list
Air waybill
Export declaration, when required
Import permits or licenses
Certificate of origin, when applicable
Dangerous Goods Declaration, when required
Product certificates
Security documentation
Transit documents
Power of attorney or brokerage authorization

The required documents depend on the countries, commodity, transaction and customs procedure.

The air waybill is a key transport document and forms the contract of carriage between the shipper and the airline. Electronic air waybills can replace the paper air waybill on enabled routes and under the applicable arrangements.

Information should remain consistent across the booking, invoice, packing list, air waybill and customs submission.

Differences in piece count, weight, commodity description, shipper details or consignee information can interrupt acceptance or clearance. These problems are often discovered at the worst possible time: after the cargo reaches the airport and the flight cut-off is approaching.

8. Collection connects the shipper to the export operation

Once the freight is ready, it is collected or delivered to the forwarder or export-handling facility.

Before collection, the parties should confirm:

Cargo-ready time
Exact collection address
Contact person
Facility operating hours
Loading equipment
Vehicle requirements
Package count
Final weight and dimensions
Document availability
Special handling instructions

The collection plan must work backward from the airline’s cargo cut-off.

A shipment cannot arrive at the terminal at the same time the aircraft is scheduled to depart. It needs time for receiving, document checks, security controls, acceptance, build-up and movement to the aircraft.

This is why air freight cut-off times can be many hours before departure.

9. Export handling prepares the freight for airline acceptance

At the export facility, the freight and documents are checked against the booking.

The handling process may include:

Receiving the cargo
Confirming piece count
Checking weight and dimensions
Inspecting visible packaging condition
Verifying labels and markings
Reviewing documentation
Completing security procedures
Preparing export records
Transferring the shipment to the airline or ground handler

If the physical cargo doesn’t match the booking data, the shipment may need to be corrected, rebooked or repriced.

A difference in dimensions can affect aircraft compatibility. A difference in weight can change the chargeable weight. Missing labels or documents can prevent acceptance.

Time lost at this stage can cause the shipment to miss its planned flight.

10. Security screening is part of the cargo journey

Air cargo must enter the aviation security system before loading.

The exact process depends on the origin country, security status, supply-chain participants, cargo type and applicable regulations. Screening methods may include physical inspection, X-ray or other approved procedures.

Some freight is more difficult to screen because of its size, density, construction or contents. That should be identified during planning, not after arrival at the terminal.

If standard screening cannot be completed, the shipment may require another approved method, different preparation or additional time.

Security status must also remain protected through controlled handling and transport. A secure shipment can lose its status if the chain of custody is broken under the applicable program.

11. Airline acceptance decides whether the cargo is ready for carriage

Airline acceptance is more than handing freight to a terminal.

The airline or ground handler checks whether the cargo meets the conditions for transport. According to IATA guidance, commercial air cargo generally passes through an acceptance process designed to confirm readiness for carriage and compliance with carrier, export, import and handling requirements.

Acceptance may verify:

Booking details
Number of pieces
Weight and dimensions
Packaging condition
Labels and markings
Documentation
Security status
Dangerous-goods compliance
Special handling requirements
Route restrictions

If these checks are completed successfully, the shipment can be treated as ready for carriage.

Acceptance can fail when:

The freight differs from the booking
Packaging is inadequate
Documentation is incomplete
Security requirements haven’t been met
Dangerous goods are undeclared or incorrectly prepared
The cargo exceeds aircraft or handling limits
Required approvals are missing
The shipment arrives after cut-off

The earlier these risks are identified, the more recovery options remain available.

12. Build-up prepares cargo for the aircraft

Accepted cargo is organized for loading.

Depending on the aircraft and route, it may be:

Loaded as loose cargo
Secured to an aircraft pallet
Placed inside a unit load device
Combined with other compatible shipments
Prepared under special temperature or security controls

During build-up, weight distribution, compatibility, restraint and aircraft limitations matter.

Cargo isn’t loaded simply in the order it reaches the terminal. The airline must consider the aircraft plan, available positions, connecting priorities, dangerous-goods segregation and operational requirements.

A shipment accepted by the airline can still be offloaded because of capacity, aircraft changes, weight restrictions or operational priorities.

13. The flight may include road movement and transfers

The airport-to-airport journey may contain more than one flight. It can also include scheduled road feeder services between airports.

A connecting shipment is unloaded at the transfer hub, moved through the cargo terminal and prepared for the next departure.

Each transfer introduces another operational dependency:

Arrival performance of the first flight
Minimum connection time
Terminal congestion
Documentation and data transfer
Security status
Cargo compatibility
Availability on the onward flight

Tracking should distinguish between planned events and confirmed physical events. “Booked” doesn’t mean loaded. “Departed” should refer to the actual flight movement, not only the original schedule.

For urgent cargo, monitoring should focus on the milestones that could change the delivery outcome.

14. Arrival begins the import process

At destination, the cargo is unloaded and transferred to the airline or ground-handling facility.

The import process can include:

Flight-arrival confirmation
Aircraft unloading
Transfer to the cargo terminal
Unit-load-device breakdown
Shipment identification
Arrival-status updates
Document availability
Customs presentation
Terminal release

Cargo may not become available immediately after the aircraft lands.

The handler needs time to unload, process and locate the shipment. Large consolidations must be broken down before individual shipments can be released. Local terminal procedures and operating hours also affect availability.

Flight arrival and cargo availability are different milestones.

15. Customs clearance determines whether the shipment can be released

Customs clearance can begin before arrival when the necessary data and documents are available and local procedures allow advance processing.

The broker or responsible party may need:

Commercial invoice
Packing list
Air waybill details
Importer information
Product classification
Customs value
Country of origin
Licenses or permits
Supporting certificates
Duty and tax instructions

Customs may release the shipment, request additional information, inspect the goods or refer the entry to another authority.

Delays frequently result from:

Incomplete product descriptions
Incorrect tariff classification
Missing importer registration
Valuation questions
Missing licenses
Differences between documents
Unpaid duties or taxes
Regulatory inspection

Fast air transport cannot compensate for customs information that wasn’t prepared.

The best way to protect the arrival plan is to begin document review before departure rather than waiting for the cargo to land.

16. Terminal release and recovery must be coordinated

Customs release doesn’t automatically mean that the freight is ready to leave the terminal.

The airline or handler may also require:

Arrival documentation
Payment of terminal charges
Release authorization
Original or electronic delivery instructions
Identification of the collecting party
Vehicle or appointment information

Storage charges may begin after the applicable free period. The consignee, broker, forwarder and delivery provider should therefore coordinate release rather than treating their tasks as separate steps.

For special cargo, the collection vehicle may need temperature control, security arrangements, a tail lift, loading equipment or other capabilities.

17. Final delivery completes the shipment

The final delivery plan should confirm:

Delivery address
Receiving contact
Facility hours
Appointment requirements
Vehicle access
Unloading equipment
Package count
Handling instructions
Documentation requirements
Proof-of-delivery standard

A shipment can cross several countries successfully and still fail at the last mile because the receiving facility is closed, the contact is unavailable or the vehicle cannot access the site.

For urgent shipments, delivery confirmation should capture more than a driver status. Useful proof may include:

Recipient name
Signature
Delivery date and time
Package count
Condition or exception notes
Photographs, when appropriate and permitted
Refusal or shortage details

The shipment is operationally complete when delivery is confirmed and any remaining exceptions are documented.

Who is responsible at each stage?

Air freight involves several parties.

The shipper

The shipper prepares the goods and provides accurate information. This includes suitable packaging, correct commodity details and disclosure of dangerous goods.

The freight forwarder

The forwarder plans the route, requests capacity, coordinates collection, prepares transport data, manages handovers and monitors the movement according to the agreed scope.

The airline

The airline accepts eligible cargo under its conditions of carriage and transports it between the agreed airports.

Ground handlers

Ground handlers receive, process, store, build up, break down and release cargo on behalf of airlines or other parties.

Customs broker

The broker prepares or submits customs entries under the applicable authorization and supports responses to customs questions.

Importer and consignee

The importer provides the information and authority needed for clearance. The consignee prepares to receive the shipment and report delivery exceptions.

The exact contractual responsibility depends on the agreement, Incoterms rule, customs arrangement and purchased service.

Where do air freight shipments commonly fail?

Many failures begin before the cargo reaches the airport.

Common causes include:

Incomplete booking information
Incorrect dimensions or weight
Unclear delivery deadline
Unconfirmed capacity
Inadequate packaging
Undeclared dangerous goods
Missing export or import documents
Late cargo readiness
Missed terminal cut-off
Failed security screening
Aircraft substitution
Offload or missed connection
Customs-data errors
Unpaid destination charges
Poor final-delivery information

The strongest air freight plan identifies these risks while alternatives are still available.

What should shippers confirm before booking?

Before approving an air freight shipment, confirm:

The real cargo-ready time
The required delivery time
Complete package dimensions
Gross weight
Accurate commodity description
Dangerous-goods status
Packaging suitability
Export-document readiness
Importer and customs readiness
Planned route and connections
Confirmed capacity
Cargo cut-off
Included and excluded charges
Tracking and escalation process
Recovery options
Final-delivery requirements

For critical freight, also establish who can make decisions outside normal working hours.

Frequently asked questions

How long does international air freight take?

There is no universal transit time. The result depends on cargo readiness, collection, flight availability, connections, screening, export procedures, customs clearance, terminal release and final delivery. Airport-to-airport flight time represents only one part of the journey.

Is air freight always sent on a cargo aircraft?

No. Air cargo can move in the lower deck of passenger aircraft or on dedicated freighters. The choice depends on the route, capacity, dimensions, weight, commodity and handling requirements.

What is an air waybill?

An air waybill is a transport document that forms the contract of carriage between the shipper and the airline. It contains shipment, routing and handling information. On enabled routes, an electronic air waybill may replace the paper document.

What is chargeable weight?

Chargeable weight is the weight used to calculate the air freight charge. It is generally the higher of the shipment’s actual gross weight and its calculated volumetric weight.

Why is the cargo cut-off earlier than the flight departure?

Cargo needs time for receiving, document review, security controls, airline acceptance, build-up and movement to the aircraft. Arriving before departure isn’t sufficient.

Can air freight be guaranteed?

Air freight can be planned and monitored against a required deadline, but scheduled services remain exposed to capacity, weather, aircraft, handling, customs and other operational risks. Any guarantee must be based on the specific service’s written terms.

Can dangerous goods move by air?

Many dangerous goods can move by air when correctly classified, packaged, marked, labeled, documented and accepted under the applicable regulations. Some items are restricted or forbidden. The shipment must be reviewed before booking.

Does flight arrival mean the cargo is ready for collection?

No. The cargo must be unloaded, processed, identified and made available by the destination handler. Customs and terminal-release requirements must also be completed.

Air freight is a chain, not a flight

The aircraft provides speed between airports. The full service depends on every stage around it.

Accurate information supports the booking. Suitable packaging protects the cargo. Documentation supports acceptance and customs clearance. Security controls make the shipment eligible for loading. Monitoring protects connections, while coordinated import handling turns arrival into final delivery.

A reliable air freight plan works backward from the required delivery result and gives every handover an owner, deadline and recovery path.

Planning an air freight shipment? Send Top Gun Cargo the origin, destination, cargo-ready date, required delivery date, commodity, package count, dimensions, weight and handling requirements. The team can assess the route, capacity and controls required for the movement.