The mountain is located south of Santiago began erupting last Friday.
The Airport Authority Argentina says volcanic ash from the eruption have been closing some of the air in Buenos Aires so that interfere with the flight.
'' All flights canceled due to the interference of smoke, '' said a spokesman for the Argentina airport manager, Aeropuertos Argentinos 2000.
The airport in Buenos Aires is the liaison for the whole region of South America.
Some other small airports in Argentina also closed.
The same also applies for flights at the airport Carrasco Montevideo, Uruguay.
Chile is one of the countries that have active mountains in the world. There are more than 3,000 mountain throughout the country and 80 of them active.
The eruption of this time is serious since 1960, when the region was hit by the earthquake.