The fare went up from 3 pesos to 5 pesos recently -- roughly from 25 cents to 40 cents -- the Los Angeles Times reported Saturday. Angry residents have responded with a movement using the hashtag "Pos me salto" or "I'll jump."
On at least one occasion observed by the Times, police officers stood by, laughing, as fare evaders bypassed the turnstiles.
"It is unfair and an insult to minimum-wage earners," said Marcos Aguirre Cruz, 19, a philosophy student who has joined the movement.
The subway in Mexico City has about 5 million riders a day. The system was built in the 1970s and 1980s but is now notoriously dirty, overcrowded and rife with street merchants.
The fare increase has further cut support for Mayor Miguel Angel Mancera.
"I want to tell Mancera that when the subway stations are clean, when there are more trains, when the vendors are gone, when there is more security, more protection for women riders and when there is good service, then I will be happy to pay 5 pesos," Mariana Escalona, a 22-year-old engineering student, told the Times.
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