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.

NEW YORK -- A Russian woman who stowed away on a Delta Air Lines flight from New York to Paris last week is on her way back to the United States. French authorities have identified the woman as Svetlana Dali.

The stowaway, who has been been held in a waiting area at Charles de Gaulle Airport in Paris since she arrived there last week, is expected to be on a flight back to JFK Tuesday, a Paris airport official told CNN. The passenger will be escorted by six US ...