Popcateptl volcano in Mexico has disrupted travel plans for many. Fox News reported that there have been thousands of passengers who are flying in and out of major airports in Mexico including Mexico City and Toluca airports that are facing major delays and cancels.

There have been at least six U.S. airlines canceling 47 flights at the airports.

"Mexico City airport spokesman Jorge Gómez said U.S. Airways, Delta, United, American and Alaska Airlines canceled the flights as a precaution, after the volcano spewed ash, steam and glowing rocks 

But he said the airport otherwise continues to operate normally and that by Thursday afternoon no ash had reached the area, about 40 miles northwest from the volcano," reported Fox News.

There has been a 7 mile safety radius placed around the volcano, so no one can enter the area. This also ensure that there are no cars through the mountain pass, Paseo de Cortes which is between Popocateptl and iztaccihuatl volcanoes.

"Gomez said that among the routes affected by the cancelations were flights to Houston, Dallas, Denver, Phoenix, Chicago and Los Angeles," reported the Associated Press.

There have been no volcanic ash falling near the Mexico City airport but residents in the sounthern neighborhoods of the city reported seeing light coats of ash on their homes and cars, reported the AP.

"If there is an eruption, we wouldn't evacuate Mexico City," Fausto Lugo , Mexico City's civil protection secretary said. "For us the main risk is the handling of volcanic ashes."

According to the AP there were tremors from the volcano on Thursday, which is 17,886 foot high. It has now been spraying hot rock and ash for the last 24 hours.

"An iconic backdrop to Mexico City's skyline on clear days, Popocatepetl sits roughly halfway between Mexico City and the city of Puebla," reported the AP.