Air freight rates depend on many factors, each of which is taken into account when calculating the total cost of air transportation specified in the agreement between the air carrier, air freight forwarder and cargo owner. In general, the calculation of the cost of air transportation of goods is carried out on the basis of the following indicators: air freight (the cost of air transportation per kilogram of paid weight); the cost of fuel surcharges, airport fees, handling costs, packaging, labeling, cargo picking, loading and unloading operations, preparation of the necessary documentation for customs clearance of goods. Air transportation will be more expensive if these are special categories of cargo, such as heavy, bulky, dangerous goods, as well as flowers, perishable goods, medicines. Special transportation conditions and additional resources in the processing of such goods (preparation for shipment) will affect the final cost of air delivery.