Mexico City International Airport officials said specialized teams and management were assessing the situation. A cloud of volcanic ash swirls toward the Gulf of Mexico.
The administration recommended travelers stay informed through their airlines and official airport channels.
The government has issued a yellow alert due to activity at the nearby volcano, whose name means “Smoking Mountain” in the Aztec language.
Earlier, authorities said the plume of smoke from the volcano was blowing north and northwest and could bring ash to the capital.