When it comes to the dimensions of personal belongings that travelers are permitted to bring on board, Frontier Airlines has strict rules. Each ticket comes free of charge with a personal item that must fit beneath the seat in front of you. Frontier policy is that a personal item can not be more than 14 inches in height, 18 inches in width, and 8 inches in depth (35.5 x 45.7 x 20.3 cm), including handles, wheels, and straps.
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