Mexico City Metro Line A is one of the twelve metro lines operating in Mexico City, Mexico. The line's color is purple. It was the ninth line to be opened.
The line was opened in 1983 and it runs from eastern Mexico City southeast into the State of Mexico. Line A has 10 stations and a length of 17.192 km (10.683 mi), out of which 14.893 km (9.254 mi) are for service. It was the second line to service the State of Mexico, after the Cuatro Caminos station of the Line 2, opened in 1984.
Line A was inaugurated on August 12, 1991 by Carlos Salinas de Gortari, President of Mexico from 1988 to 1994, Manuel Camacho Solís, Head of the Federal District Department from 1988 to 1993, and Ignacio Pichardo Pagaza, Governor of the State of Mexico from 1989 to 1993.
Line A was conceived as a feeder line, thus, instead of using a number (which, in this case, it would have been 10 – Line 10), it used a letter in its denomination. The line was designed to connect Mexico City to the State of Mexico. For this reason, until December 2013, it was necessary to pay another fare when commuting from Line A to Lines 1, 5 and 9 at Pantitlán station.[3][4]
Another feeder line, also connecting the State of Mexico to Mexico City, would be inaugurated in 1999: Line B, also using a letter instead of a number to designate it.
A proposed extension of the line was presented in 2018 by the Sistema de Transporte Colectivo. According to the plan, Line A would be expanded southbound towards Chalco in the State of Mexico. The stretch would have six new stations and a length of 13.19 km (8.20 mi).[5]
Line A has had different types of rolling stock throughout the years.
Currently, out of the 390 trains in the Mexico City Metro network, 17 are in service in Line A.[6]
The stations from west to east:
The following table shows each of Line A stations total and average daily ridership during 2019.[1]
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) connections obtained from the official Mexico City Metro system map.[7]
‡ are fully accessible; stations with the symbol 
† are partially accessible.[7]
) obtained from their official website.[8]_%C3%93rgano_Regulador_de_Transporte_(CETRAM).svg/1280px-Movilidad_Integrada_(logo)_%C3%93rgano_Regulador_de_Transporte_(CETRAM).svg.png){kind=spacer}
) obtained from the official website of the Órgano Regulador de Transporte.[9]
) obtained from the Mexico City Metrobús system map.[10].svg/1280px-Mexib%C3%BAs_(CDMX_logo).svg.png){kind=small}
) obtained from the official Mexico City Metro system map.[7]_Red_de_Autobuses_de_la_CDMX.svg/1280px-Movilidad_Integrada_(logo)_Red_de_Autobuses_de_la_CDMX.svg.png){kind=small}
) obtained from the official website of the Órgano Regulador de Transporte.[11]
) obtained from their official website.[12]
) obtained from their official website.[8]