MEXICO CITY — An airport official says U.S. airlines have resumed all flights to Mexico City after voluntarily cancelling several dozen because of an eruption from the nearby Popocatepetl volcano.

Mexico City International Airport information chief Richard Jimenez says United and American Airlines resumed flights Thursday night. On Friday, there were no reports of cancellations by any airline.

At least six U.S. airlines canceled 47 flights into and out of the Mexico City and Toluca airports on Thursday as the volcano spewed a mile-high (1.5 kilometer-high) plume of ash that drifted over large parts of Mexico City, 40 miles (65 kilometers) away. The volcano also spewed hot a shower of glowing hot rock around its crater.