Important Points, Before Travel with Delta Airline Delta airlines are U.S global airline leader in safety, innovation, reliability, and customer experience and are the world's largest airline. With its headquarter in Atlanta, Delta operates hubs and key markets at airports in Amsterdam, Atlanta, Boston, Detroit, London-Heathrow, Los Angeles, and ten other cities. Delta Airlines has its renowned service to more than 200 million people every year and is an industry-leading global network up to 300 destinations in over 50 countries. The Customer can book tickets at Delta Airlines Reservations Helpdesk. It is proclaimed as the Fortune's top 50 most Admired Company and most admired airline for eight consecutive years; it is also ranked No.1 in the Business Travel News Annual Airline for nine consecutive years and also awarded for becoming one of the fastest companies for being the most innovative company worldwide. With their mission of connecting people and cultures from all ov