This U.S. industry comprises establishments primarily engaged in providing air transportation of cargo without transporting passengers with no regular routes and regular schedules. Cross-References. Establishments primarily engaged in-- ? Providing specialty air transportation or flying services with no regular routes and regular schedules using general purpose aircraft--are classified in U.S. Industry 481219, Other Nonscheduled Air Transportation; ? Providing air courier services--are classified in Industry 492110, Couriers and Express Delivery Services; ? Providing air transportation of cargo without transporting passengers over regular routes and on regular schedules--are classified in U.S. Industry 481112, Scheduled Freight Air Transportation; and ? Providing air transportation of cargo and passengers with no regular routes and schedules--are classified in U.S. Industry 481211, Nonscheduled Chartered Passenger Air Transportation.