Mexico City country and international connections. There are some intercity buses that leave directly from the Mexico City International Airport. Mexico City is served by Mexico City International Airport (IATA Airport Code: MEX). This airport is Latin America's busiest, with daily flights to United States and Canada, Mexico, Central America and the Caribbean, South America, Europe and Asia. Aeroméxico (Skyteam) is based at this airport, and provide codeshare agreements with non-Mexican airlines that span the entire globe. The airport is also a hub for Volaris, Interjet and Aeromar. In 2016, the airport handled almost 42 million passengers, about 3.3 million more than
Trolleybuses in Mexico City I, K, LL and S are cross-city routes, while line CP is a radial route. Trolleybuses in Mexico City The Mexico City trolleybus system () serves Mexico City, the capital city of Mexico. The system opened on 9 March 1951. As of mid-2014, the system had 8 lines and the operable fleet included around 360 trolleybuses. The total number of trolleybuses scheduled in service in peak periods was 290 in late 2012, but was 264 in mid-2014. The eight routes currently in operation are designated by the following letters: A, CP, D, G, I, K, LL and S. As of