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.

French officials tell ABC News that the woman who allegedly snuck onto a Delta Airlines international flight is a Russian national who did not have valid travel documents to enter the country.

An unauthorized passenger bypassed the Transportation Security Administration and boarded a plane at JFK on Tuesday, officials said. The plane later landed in Paris. The stowaway passenger was aboard Delta Flight 264,

The individual, who did not have a boarding pass, completed security screening and bypassed two identity verification and boarding status stations to board the aircraft, according to a TSA spokesperson.

A source says a woman who stowed away on a New York to Paris flight entered a security lane reserved for flight crews and was able to evade a standard ID check. While in custody on a return flight, a passenger says,

A woman was taken into custody after the stowaway flew aboard a Delta Air Lines flight from New York's JFK International Airport to Paris Charles de Gaulle Airport, the airline said.