The unidentified woman, who is between 55 and 60, is expected to return to JFK Airport in Queens on Saturday evening, Port Authority sources said, and is expected to face charges.

Investigators are trying to determine how a woman got past multiple security checkpoints this week at New York’s JFK International Airport and boarded a plane to Paris, apparently hiding in the aircraft’s bathrooms during the flight.

"The individual bypassed two identity verification and boarding status stations and was able to board the aircraft," TSA said in a statement.

It remains unclear how the person managed to bypass security at JFK Airport and board the Delta Airlines flight to Paris.

A stowaway somehow made it onto a Delta Air Lines flight Tuesday from New York City to Paris without a boarding pass, officials confirmed.The woman boarded Delta Flight No. 264 from John F. Kennedy International Airport to Paris Charles de Gaulle Airport,

A stowaway passenger was removed from a Delta Air Lines flight by authorities in Paris on Wednesday after boarding a flight from New York. The woman went through full security screening, but managed to board the aircraft without a ticket.

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,