spirit airlines carry on size must fit in the overhead bins and measure no more than 22 x 18 x 10 inches. Passengers are permitted to bring one personal item, such as a small backpack, laptop bag, or handbag, under the seat in front of them in addition to their carry-on. Personal belongings cannot be larger than 18 x 14 x 8 inches. By being aware of these differences, you can pack more effectively and steer clear of last-minute airport costs.
