Movielover1996

Plot hole: Kyle is an airplane engineer and designer (decent paying job) who is flying on the same plane that she helped designed, and she is traveling with her daughter back home to family after her husband's untimely death, transporting his body in a casket. No one under these circumstances would be traveling lightly (possibly no economy) as she does. She would almost certainly have special privileges and notice from officials, and there would be impending knowledge of her flight prior to boarding.

Movielover1996

Other mistake: At the very end, Jodie Foster's daughter is drugged and not given any medical attention until hours later when she wakes up. Giving medical attention to a person, especially a child, that is the victim of a crime is easily one of the first things that law enforcement would do. Obviously done to make the final scene more dramatic. (01:28:50 - 01:31:30)

Movielover1996