Delta Air Lines, Inc. provides scheduled air transportation for passengers and cargo in the United States and internationally. The company operates through two segments, Airline and Refinery. Its domestic network centered on core hubs in Atlanta, Minneapolis-St. Paul, Detroit, and Salt Lake City, as well as coastal hub positions in Boston, Los Angeles, New York-LaGuardia, New York-JFK, and Seattle; and international network centered on hubs and market presence in Amsterdam, Bogota, Lima, Mexico City, London-Heathrow, Paris-Charles de Gaulle, Sao Paulo, Seoul-Incheon, and Tokyo. The company sells its tickets through various distribution channels, including delta.com and the Fly Delta app; acts as a reservations specialists; and operates online travel and traditional brick and mortar agencies. It also provides aircraft maintenance and engineering support, repair, and overhaul services; and vacation packages to third-party consumers. The company operates through a fleet of approximately 1,273 aircrafts. Delta Air Lines, Inc. was founded in 1924 and is based in Atlanta, Georgia.

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.

Alaska Air Group, Inc., through its subsidiaries, operates airlines. It operates through three segments: Mainline, Regional, and Horizon. The company offers scheduled air transportation services on Boeing jet aircraft for passengers and cargo in the United States, and in parts of Canada, Mexico, Costa Rica, Belize, Guatemala, and the Bahamas; and for passengers across a shorter distance network within the United States, Canada, and Mexico. Alaska Air Group, Inc. was founded in 1932 and is based in Seattle, Washington.

ABM Industries Incorporated, through its subsidiaries, engages in the provision of integrated facility, infrastructure, and mobility solutions in the United States and internationally. It operates through Business & Industry, Manufacturing & Distribution, Education, Aviation, and Technical Solutions segments. The company offers janitorial, facilities engineering, and parking services for commercial real estate properties, including corporate offices for high tech clients, sports and entertainment venues, and traditional hospitals and non-acute healthcare facilities; provides vehicle maintenance and other services to rental car providers. It also offers integrated facility services, engineering, and other specialized services in various types of manufacturing, distribution, and data center facilities. In addition, the company delivers custodial and landscaping and grounds for public school districts, private schools, colleges, and universities. Further, it supports airlines and airports with services comprising passenger assistance, catering logistics, air cabin maintenance, and transportation services. Additionally, the company provides electric vehicle power design, installation, and maintenance, as well as microgrid systems installations. ABM Industries Incorporated was founded in 1909 and is headquartered in New York, New York.

Blade Air Mobility, Inc. provides air transportation alternatives to the congested ground routes in the United States. It provides its services through charter and by-the-seat flights using helicopters, jets, turboprops, and amphibious seaplanes. The company was founded in 2014 and is headquartered in New York, New York.

Azul S.A., together with its subsidiaries, provides air transportation services in Brazil and internationally. As of December 31, 2023, the company operated approximately 1,000 daily departures to 160 destinations through a network of 300 non-stop routes with an operating fleet of 183 aircraft and a passenger contractual fleet of 189 aircraft. It is involved in the cargo or mail, passenger charter, intellectual property owner, frequent-flyer program, airline operations, travel packages, funding, and aircraft financing activities; and provision of maintenance and hangarage services for aircraft, engines, parts and pieces. The company was incorporated in 2008 and is headquartered in Barueri, Brazil.

Spirit Airlines, Inc. provides airline services. The company also offers hotels and rental cars services. It serves 93 destinations in 15 countries in the United States, Latin America, and the Caribbean. As of December 31, 2023, the company operated a fleet of 205 Airbus single-aisle aircraft. The company was formerly known as Clippert Trucking Company and changed its name to Spirit Airlines, Inc. in 1992. Spirit Airlines, Inc. was incorporated in 1964 and is headquartered in Miramar, Florida.

Hawaiian Holdings, Inc., through its subsidiary, Hawaiian Airlines, Inc., engages in the scheduled air transportation of passengers and cargo. It provides daily services on North America routes between the State of Hawai'i and Long Beach, Los Angeles, Oakland, Ontario, Sacramento, San Diego, San Francisco, and San Jose, California; Las Vegas, Nevada; Seattle, Washington; Portland, Oregon; Phoenix, Arizona; New York City, New York; Austin, Texas; and Boston, Massachusetts. The company also offers daily service on its Neighbor Island routes among the four major islands of the State of Hawai'i. In addition, it offers scheduled service on its international routes between the State of Hawai'i and Tokyo (Narita and Haneda), Japan, Osaka, Japan; Sydney, Australia; Auckland, New Zealand; Pago Pago, American Samoa; Papeete, Tahiti; and Seoul, South Korea, as well as operates various ad hoc charters. The company distributes its tickets through various distribution channels, including its website hawaiianairlines.com primarily for North America and Neighbor Island routes, as well as through travel agencies and wholesale distributors for its international routes. As of December 31, 2023, its fleet consisted of 19 Boeing 717-200 aircraft for the Neighbor Island routes; 24 Airbus A330-200 aircraft; and 18 Airbus A321neo for the North America and international routes. The company was incorporated in 1929 and is headquartered in Honolulu, Hawaii.