Authorities in the United States have reviewed airport security footage as they continue to investigate how a woman sneaked on board a Delta Air Lines flight from New York to Paris without a ticket last Tuesday –– one of the busiest travel days of the year.

The woman accused of sneaking onto a Delta Air Lines flight from New York City to Paris last week returned to New York City's John F. Kennedy International Airport on Wednesday. The suspect, identified as Svetlana Dali,