Cargo airlines (or air freight carriers, and derivatives of these names) are airlines mainly dedicated to the transport of cargo by air. Some cargo airlines are divisions or subsidiaries of larger passenger airlines. In 2018, airline cargo traffic represented 262,333 million tonne-kilometres with a 49.3% load factor: 52.1% for dedicated cargo operations, and 47.9% within mixed operations (belly freight of passenger airliners).[1]
Dedicated cargo airlines such as FedEx, UPS, and DHL, operate a fleet of cargo aircraft and handle the entire freight transportation process. Many airlines, like Emirates and Qatar Airways, have dedicated cargo divisions that operate their own fleet of cargo aircraft alongside their passenger operations. During the pandemic, airlines like American Airlines, Air Canada, and Delta Air Lines utilized their passenger planes, removing seats to create space for cargo, to meet the demand for freight transport.[2][3]