United Airlines Holdings, Inc., through its subsidiaries, provides air transportation services in North America, Asia, Europe, Africa, the Pacific, the Middle East, and Latin America. The company transports people and cargo through its mainline and regional fleets. It also offers catering, ground handling, flight academy, and maintenance services for third parties. The company was formerly known as United Continental Holdings, Inc. and changed its name to United Airlines Holdings, Inc. in June 2019. United Airlines Holdings, Inc. was incorporated in 1968 and is headquartered in Chicago, Illinois.

Southwest Airlines Co. operates as a passenger airline company that provides scheduled air transportation services in the United States and near-international markets. As of December 31, 2023, the company operated a total fleet of 817 Boeing 737 aircraft; and served 121 destinations in 42 states, the District of Columbia, and the Commonwealth of Puerto Rico, as well as ten near-international countries, including Mexico, Jamaica, the Bahamas, Aruba, the Dominican Republic, Costa Rica, Belize, Cuba, the Cayman Islands, and Turks and Caicos. It also provides inflight entertainment and connectivity services on Wi-Fi enabled aircraft; and Rapid Rewards loyalty program that enables program members to earn points for dollars spent on Southwest base fares. In addition, the company offers a suite of digital platforms to support customers' travel needs, including websites and apps; and SWABIZ, an online booking tool. Further, it provides ancillary services, such as Southwest's EarlyBird Check-In, upgraded boarding, and transportation of pets and unaccompanied minors. Southwest Airlines Co. was incorporated in 1967 and is headquartered in Dallas, Texas.

LATAM Airlines Group S.A., together with its subsidiaries, provides passenger and cargo air transportation services in Chile, Peru, Ecuador, Colombia, Brazil, other Latin American countries, the Caribbean, North America, Europe, and Oceania. It offers other services, such as ground handling, courier, logistics, and maintenance services. As of December 31, 2023, the company provides passenger transport services to 148 destinations in 26 countries and cargo services to 166 destinations in 33 countries; and operated 333 fleet of aircraft. The company was formerly known as LAN Airlines S.A. and changed its name to LATAM Airlines Group S.A. in June 2012. LATAM Airlines Group S.A. was founded in 1929 and is headquartered in Santiago, Chile.

American Airlines Group Inc., through its subsidiaries, operates as a network air carrier. The company provides scheduled air transportation services for passengers and cargo through its hubs in Charlotte, Chicago, Dallas/Fort Worth, Los Angeles, Miami, New York, Philadelphia, Phoenix, and Washington, D.C., as well as through partner gateways in London, Doha, Madrid, Seattle/Tacoma, Sydney, and Tokyo. It operates a mainline fleet of 965 aircraft. The company was formerly known as AMR Corporation and changed its name to American Airlines Group Inc. in December 2013. American Airlines Group Inc. was founded in 1926 and is headquartered in Fort Worth, Texas.

Copa Holdings, S.A., through its subsidiaries, provides airline passenger and cargo services. The company offers approximately 375 daily scheduled flights to 82 destinations in 32 countries in North, Central, and South America, as well as the Caribbean from its Panama City hub. As of December 31, 2023, it operated a fleet of 106 aircraft comprising 76 Boeing 737-Next Generation aircraft, 29 Boeing 737 MAX 9 aircraft, and one Boeing 737-800 Boeing Converted Freighter. The company was founded in 1947 and is based in Panama City, Panama.

JetBlue Airways Corporation provides air transportation services. The company operates a fleet of Airbus A321, Airbus A220, Airbus A321neo, Airbus A320 Restyled, Airbus A320, Airbus A321 with Mint, Airbus A321neo with Mint, Airbus A321neoLR with Mint, and Embraer E190 aircraft. It also serves 100 destinations across the United States, the Caribbean and Latin America, Canada, and Europe. In addition, it operates airport lounges. The company was incorporated in 1998 and is based in Long Island City, New York.

Sun Country Airlines Holdings, Inc., an air carrier company, operates scheduled passenger, air cargo, charter air transportation, and related services in the United States, Latin America, and internationally. It operates through two segments, Passenger and Cargo. The company also provides crew, maintenance, and insurance services through ad hoc, repeat, short-term, and long-term service contracts; and loyalty program rewards. As of December 31, 2023, its fleet consisted of 60 Boeing 737-NG aircraft, which includes 42 passenger fleet, 12 cargo, and 6 leased to unaffiliated airlines aircraft. The company serves leisure, and visiting friends and relatives passengers; charter and cargo customers; military branches; collegiate and professional sports teams; wholesale tour operators; schools; companies; and other individual entities through its website, call center, and travel agents. Sun Country Airlines Holdings, Inc. was founded in 1983 and is headquartered in Minneapolis, Minnesota.

Controladora Vuela Compañía de Aviación, S.A.B. de C.V., through its subsidiary, Concesionaria Vuela Compañía de Aviación, S.A.P.I. de C.V., provides air transportation services for passengers, cargo, and mail in Mexico and internationally. The company operates approximately 590 daily flights on routes connecting 43 cities in Mexico, 22 cities in the United States, 4 cities in Central America, and 2 cities in South America. As of December 31, 2022, it leased 116 aircrafts and 23 spare engines. The company also offers merchandising, travel agency, and loyalty program, as well as specialized and aeronautical technical services. Controladora Vuela Compañía de Aviación, S.A.B. de C.V. was incorporated in 2005 and is headquartered in Mexico City, Mexico.