Mexicana de Aviación The headquarters of the company were in the Mexicana de Aviación Tower in Colonia del Valle, Benito Juárez, Mexico City. In addition to domestic services, Mexicana operated flights to various international destinations in North America, Central America, the Caribbean, South America and Europe (until August 31). Their primary hub was Mexico City's Benito Juarez International Airport, with secondary hubs at Cancún International Airport, and Guadalajara's Don Miguel Hidalgo y Costilla International Airport. Mexicana's main competitors were Aeroméxico (although the two companies "codeshared" on several routes), and low-cost carriers such as Volaris and Interjet. Mexicana was North America's oldest airline and
S-train expansion and new trains). Plans for further extension of system include another two lines, one of which should reach Belgrade Nikola Tesla Airport. "S-Bahn" is also used in German-speaking Switzerland. While French publications of those networks translate it as "RER", the line numbers are still prefixed with an S (e.g. S2). The oldest network in Switzerland is the Bern S-Bahn, established in stages from 1974 and has adopted the term S-Bahn since 1995. It is also the only one in Switzerland to use a coloured "S" logo. In 1990, the Zürich S-Bahn, which covers the largest area, went into service.