Pope Francis Spends Final Day in US

PHOTO: Pope Francis speaks during the Festival of Families on Sept. 26, 2015 in Philadelphia.PlayGetty Images
WATCH What to Expect on Pope Francis' Final Day in US

Pope Francis finishes up his trip to the United States today with events throughout Philadelphia, including a final Mass that could see as many as 1 million people attend.

This morning, the pope meets with bishops at the St. Martin's Chapel in St. Charles Borromeo Seminary. Afterwards, he visits the Curran-Fromhold Correctional Facility, where he'll be meeting about 100 prisoners.

Pope Francis later celebrates Mass on the Benjamin Franklin Parkway to conclude the World Meeting of Families Festival, which he attended Saturday, before flying back to Rome.

Francis arrived in Philadelphia on Saturday. He celebrated Mass at Cathedral Basilica of Saints Peter and Paul, addressed a group of immigrants at Independence Mall, and later attended the World Meeting of Families Festival.