Boeing 777-300ER in the context of "Narrow-body aircraft"

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).

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 COVID-19 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.

A flag carrier is a transport company, such as an airline or shipping company, that, being locally registered in a given sovereign state, enjoys preferential rights or privileges accorded by that government for international operations.

Historically, the term was used to refer to airlines owned by the government of their home country and associated with the national identity of that country. Such an airline may also be known as a national airline or a national carrier, although this can have different legal meanings in some countries. Today, it is any international airline with a strong connection to its home country or that represents its home country internationally, regardless of whether it is government-owned.

An airliner is a type of airplane for transporting passengers and air cargo. Such aircraft are most often operated by airlines. The modern and most common variant of the airliner is a long, tube shaped, and jet powered aircraft. The largest of them are wide-body jets which are also called twin-aisle because they generally have two separate aisles running from the front to the back of the passenger cabin. These are usually used for long-haul flights between airline hubs and major cities. A smaller, more common class of airliners is the narrow-body or single-aisle. These are generally used for short to medium-distance flights with fewer passengers than their wide-body counterparts.

Regional airliners typically seat fewer than 100 passengers and may be powered by turbofans or turboprops. These airliners are the non-mainline counterparts to the larger aircraft operated by the major carriers, legacy carriers, and flag carriers, and are used to feed traffic into the large airline hubs. These regional routes then form the spokes of a hub-and-spoke air transport model.

Singapore Airlines (abbreviation: SIA or SQ) is the flag carrier of Singapore with its hub located at Changi Airport. The airline is ranked as a 5-star airline and has been ranked as the world's best airline by Skytrax five times. Singapore Airlines operates a variety of Airbus and Boeing aircraft, namely the Airbus A350-900, Airbus A380, Boeing 737 MAX 8, Boeing 747-400 Freighter, Boeing 777-300ER and Boeing 787-10. The airline has been a member of Star Alliance since April 2000.

Singapore Airlines Group has more than 20 subsidiaries, including numerous airline-related subsidiaries. SIA Engineering Company handles maintenance, repair and overhaul (MRO) business across nine countries with a portfolio of 27 joint ventures including with Boeing and Rolls-Royce. Singapore Airlines Cargo operates SIA's freighter fleet and manages the cargo-hold capacity in SIA's passenger aircraft. Scoot, a wholly owned subsidiary, operates as a low-cost carrier. The airline is also notable for highlighting the Singapore Girl as its central figure in the corporate branding segment and not significantly changing its livery throughout its history.