Mexico City Metrobús Line 4

The Mexico City Metrobús Line 4 is a bus rapid transit line in the Mexico City Metrobus. It operates between Colonia Buenavista, in central Mexico City and the Mexico City International Airport in the Venustiano Carranza borough, in the east of the capital.

Line 4 has a total of 43 stations and a length of 40.5 kilometers divided into two routes, called the North and South routes, and goes mainly through Mexico City's downtown towards and from Mexico City International Airport.

Construction of Line 4 started on July 4, 2011 and it was inaugurated on April 1, 2012 by Marcelo Ebrard, Head of Government of the Federal District from 2006 to 2012.

Services
The line has three itineraries and two routes: North and South.

Buenavista to Terminal 2 (North route)
 * To Terminal 2
 * First Bus: 4:30 (Monday-Friday)
 * Last Bus: 00:15 (Monday-Friday)
 * First Bus: 4:30 (Saturday)
 * Last Bus: 00:15 (Saturday)
 * First Bus: 4:30 (Sunday)
 * Last Bus: 00:15 (Sunday)


 * To Buenavista
 * First Bus: 4:30 (Monday-Friday)
 * Last Bus: 00:00 (Monday-Friday)
 * First Bus: 4:30 (Saturday)
 * Last Bus: 00:00 (Saturday)
 * First Bus: 4:30 (Sunday)
 * Last Bus: 00:00 (Sunday)

Buenavista to San Lázaro (South route)
 * To San Lázaro
 * First Bus: 4:30 (Monday-Friday)
 * Last Bus: 00:30 (Monday-Friday)
 * First Bus: 4:30 (Saturday)
 * Last Bus: 00:30 (Saturday)
 * First Bus: 5:00 (Sunday)
 * Last Bus: 00:36 (Sunday)


 * To Buenavista
 * First Bus: 4:28 (Monday-Friday)
 * Last Bus: 00:15 (Monday-Friday)
 * First Bus: 4:28 (Saturday)
 * Last Bus: 00:15 (Saturday)
 * First Bus: 5:00 (Sunday)
 * Last Bus: 00:30 (Sunday)

Buenavista to San Lázaro (North route)
 * To San Lázaro
 * First Bus: 4:30 (Monday-Friday)
 * Last Bus: 00:35 (Monday-Friday)
 * First Bus: 4:30 (Saturday)
 * Last Bus: 00:35 (Saturday)
 * First Bus: 5:00 (Sunday)
 * Last Bus: 00:36 (Sunday)


 * To Buenavista
 * First Bus: 4:27 (Monday-Friday)
 * Last Bus: 00:12 (Monday-Friday)
 * First Bus: 4:27 (Saturday)
 * Last Bus: 00:12 (Saturday)
 * First Bus: 5:00 (Sunday)
 * Last Bus: 00:30 (Sunday)

Pantitlán to Hidalgo
 * To Hidalgo


 * First Bus: 4:30 (Monday-Friday)
 * Last Bus: 22:59 (Monday-Friday)
 * First Bus: 4:30 (Saturday)
 * Last Bus: 22:59 (Saturday)
 * First Bus: 5:00 (Sunday)
 * Last Bus: 23:04 (Sunday)


 * To Pantitlán


 * First Bus: 5:04 (Monday-Friday)
 * Last Bus: 22:33 (Monday-Friday)
 * First Bus: 5:04 (Saturday)
 * Last Bus: 23:33 (Saturday)
 * First Bus: 5:30 (Sunday)
 * Last Bus: 23:35 (Sunday)

Alameda Oriente to Hidalgo
 * To Hidalgo


 * First Bus: 4:30 (Monday-Friday)
 * Last Bus: 22:59 (Monday-Friday)
 * First Bus: 4:30 (Saturday)
 * Last Bus: 22:59 (Saturday)
 * First Bus: 5:00 (Sunday)
 * Last Bus: 23:58 (Sunday)


 * To Alameda Oriente


 * First Bus: 5:20 (Monday-Friday)
 * Last Bus: 23:40 (Monday-Friday)
 * First Bus: 5:20 (Saturday)
 * Last Bus: 23:40 (Saturday)
 * First Bus: 5:51 (Sunday)
 * Last Bus: 23:49 (Sunday)

Line 4 services the Cuauhtémoc and Venustiano Carranza boroughs.

South route

 * Since the route has a complex route with several one-way stations, the following table will start at the Buenavista Terminal Station and follow an eastward flow until reaching the San Lázaro Terminal Station, then follow the route westward culminating with the 20 de Noviembre station.

Replacement of stations
On November 28, 2022, five eastward bus stops were removed. Mercado de Sonora, La Merced, Mercado Ampudia,  Las Cruces Norte and Museo de la Ciudad stations were relocated southbound due to traffic jams caused by their location in the market area of the historic center of the city.

Operator
Conexión Centro-Aeropuerto, SA de CV (CCA) is the sole operator of Line 4.