The subject provides students with an introduction to practical activities in commercial air operations. Students are familiarized with the activities of airlines in selecting suitable aircraft types, creating a network of airlines and providing technical aircraft handling. The subject also includes issues of air transport sales, acceptance of passengers for transportation, issuance and recognition of documents, methods of payment, tariffs in international passenger transport, discounts, luggage, passenger transport under special conditions, provided services, operational flight documentation, receipt of goods for carriage, carrier's liability, types of charges and charges in the carriage of goods, international goods transport documents, special types of cargo and booked goods, irregularities in the air transport of goods, and other aspects related to the commercial operation of the airline.