Kyle Pratt is the main character in the 2005 movie "Flight Plan". She is portrayed by Jodie Foster and is a aeronautical engineer who is grieving the loss of her husband. The film begins with her boarding a plane from Berlin to New York with her young daughter, but mid-flight, she discovers that her daughter is missing.

Throughout the film, Kyle becomes increasingly unstable as she tries to find her daughter, leading her to question her own sanity and the trustworthiness of those around her. Despite her emotional state, Kyle is a strong, determined, and resourceful character, who will stop at nothing to find her daughter and uncover the truth behind her disappearance.

Jodie Foster's portrayal of Kyle Pratt received praise for its nuanced and powerful performance, with Foster effectively conveying the character's emotions and her descent into paranoia and anxiety. Kyle Pratt is a well-written, compelling character, who drives the film's intense and suspenseful plot forward.