The sender can deliver the cargo to the airport on his own. But in most cases, the transportation is organized by the same company that is engaged in air delivery. If we are talking about groupage cargo transportation, then before being sent to the airport, the cargo is first delivered to the warehouse, where it is sorted, packaged, and otherwise processed, after which it is combined with other goods into a common consignment

The cargo is placed in the compartments of the aircraft and carefully secured. This avoids its displacement and damage during the flight

The cargo cannot be released for free circulation until it passes the customs clearance procedure. At this stage, it is necessary to pay all duties, taxes, and fees established by law