Southwest Airlines is the originator of low-cost airlines in the civil aviation industry and the second largest airline in the United States in terms of passenger volume. The airline was established on June 18, 1971 and is headquartered in Dallas, Texas. Its key airports are Dallas Love Field Airport, Houston Hobby Airport, Nashville International Airport, and Las Vegas McCarran International Airport. wait.

Oneworld Alliance is the most comprehensive and selective international airline alliance. It was officially established on February 1, 1999. Its headquarters was initially located in Vancouver, Canada, and later moved to New York. Its member airlines and their affiliated airlines cooperate on flight schedules, ticketing, code sharing, passenger transfers, frequent flyer programs, airport VIPs and reduced expenses. In April 2005, oneworld completed the process of e-ticket interoperability arrangements, becoming the first airline alliance in the world to implement e-ticket interoperability arrangements among its member airlines.

American Airlines is one of the founding members of "OneWorld", and its hub airports are O'Hare International Airport, Dallas-Fort Worth International Airport, Los Angeles International Airport, Miami International Airport, and New York JFK International Airport. On the evening of December 9, 2013, AMR Group, the parent company of American Airlines, and US Airways Group officially announced their merger, becoming the world's largest aviation group.

Virgin America is a low-cost airline in the United States that began operations on August 8, 2007. It aims to provide low-cost air tickets and high-quality services on point-to-point long-haul routes from the east and west coasts of the United States. Its hub is San Francisco International Airport.

Copa Airlines (Compañía Panameña de Aviación, S.A.) is the national airline of Panama. It was established in 1947 and is headquartered in Panama. Its hub airport is Tocumen International Airport, and its key airports are Juan Santamaria International Airport and Cape Augusto International Airport. Airport and La Aurora International Airport. On June 21, 2012, Panama joined Star Alliance.

UPS Express (UPS Express, United Parcel Service) is the world's largest express carrier and package delivery company. Founded in 1907, the company provides logistics services in more than 200 countries and regions around the world every day, with an annual turnover of more than 50 billion US dollars. The UPS official website provides functions such as service outlet inquiry, package tracking, and freight inquiry.

Allegiant Air is a well-known low-cost airline in the United States. It is a subsidiary of Allegiant Travel Company. It was established in January 1997. It was transformed into a low-cost airline after bankruptcy and reorganization in 2005, and its business focus shifted to those that were replaced by major airlines. Overlooked routes between small cities and tourist resorts.

Alaska Airlines (NYSE: ALK) is a well-known American airline headquartered in SeaTac, Washington. Its main airports are Seattle-Tacoma International Airport, Ted Stevens Anchorage International Airport, Portland International Airport and Los Angeles International Airport.

JetBlue Airways Corporation (NASDAQ: JBLU) is a well-known low-cost airline in the United States. It was established in 1998 and is headquartered in Forest Hills, Queens, New York City. Its hub airport is JFK International Airport. JetBlue Airways operates mainly domestic routes and international routes to the Caribbean, Bahamas and Bermuda.

Frontier Airlines is an American low-cost airline founded on February 8, 1994. It is headquartered in Denver, and its hub airport is Denver International Airport in Colorado. It is worth noting that the airline is not directly related to the old Frontier Airlines, which was established in the 1950s.

All American Aviation Company was founded in 1939 and is a member of the Star Alliance. Its hub airports are Charlotte Douglas International Airport, Philadelphia International Airport, Phoenix Sky Harbor International Airport, Las Vegas McCartney Lan International Airport. US Airways Group and AMR Group, the parent company of American Airlines, officially announced their merger on the evening of December 9, 2013, becoming the world's largest aviation group.

United Airlines is an airline owned by Continental Holdings, Inc. (UAL Corporation) and a founding member of Star Alliance. United Airlines was founded in 1926 and is headquartered in Illinois, USA.

Delta Air Lines, Inc. is one of the largest airlines in the United States and a founding member of the SkyTeam alliance. Founded in 1928 and now headquartered in Atlanta, the company began as a company providing pesticide spraying services and later began to add passenger services. Delta Air Lines' routes cover more than 300 destinations in more than 60 countries around the world. The official website of Delta Airlines provides services in multiple languages ​​including Simplified Chinese. Users can complete ticket booking, boarding pass printing and other services on its official website.