United Airlines, an established name in the aviation industry, is an American airline founded in the early 20th century. Initially started as a mail-carrying service, it expanded into passenger services swiftly, paving the way for its role as one of the leading carriers in the United States. Throughout the decades, United Airlines played a crucial role in major aviation developments including the introduction of jet services and the creation of innovative customer service technology. Its history reflects a tradition of industry firsts, adapting to changes in technology and passenger preferences to remain competitive on a global scale. United’s fleet consists of a wide variety of aircraft tailored to suit numerous routes ranging from short domestic hops to long-haul international flights. This diverse fleet enables the airline to operate a versatile route network, including an extensive number of destinations both within the United States and internationally. Regular fleet modernizations and sustainability initiatives are part of United's commitment to minimizing its environmental impact, echoing its role as a forward-thinking airline. They focus on improving fuel efficiency and reducing emissions, aiming to balance operational needs with environmental sustainability. In terms of services, United Airlines offers various levels of service to cater to different types of travelers, from economy class on short domestic flights to premium classes on international routes. The airline is known for its Polaris business class, which provides luxurious amenities, and enhanced comfort for long-distance travelers. Additional services include a frequent flyer program, which rewards loyal customers with benefits such as upgrades, access to lounges, and priority boarding. United’s commitment to customer service is also evident in its investment in technology to streamline check-ins, improve real-time flight tracking, and enhance overall customer engagement during their travel experience.