At the largest terminal at New York’s John F. Kennedy International Airport on one of the busiest travel days of the year, security lapses enabled an unticketed passenger to board a plane to Paris in a shocking breach that one aviation expert said should serve as a “wake-up call” for the airline industry.

The woman accused of sneaking onto a Delta Air Lines flight from New York City to Paris last week was on her way back to New York City's John F. Kennedy International Airport Wednesday.