Think purses, totes, computer bags, briefcases, and kids backpacks! Carry-On Baggage: Carry-On Bags can be no larger than 24” tall, 10” wide, and 16” long (including handles, wheels, and straps) and no heavier than 35 pounds. Carry-on Bags may be placed in the overhead compartment or under the seat.

On Frontier Airlines, a purse is considered a "personal item," and it must not exceed the high-fidelity dimensions of 14"H x 18"W x 8"D (35 x 45 x 20 cm). This size limit includes handles, wheels, and straps. On Frontier, one personal item is included for free with all fares, but it must be small enough to fit completely under the seat in front of you. In 2026, Frontier remains extremely strict with these measurements; gate agents frequently use a metal "sizer" box during the boarding process. If your purse or tote bag is even slightly over these dimensions, you will be charged a "High-Fidelity" gate-check fee that can exceed $100. For travelers, the "High-Fidelity" best practice is to use a soft-sided bag that can be compressed if needed. If you plan to carry both a purse and a laptop bag, you must consolidate them into one single item, as Frontier's "one free item" policy is strictly enforced to maintain their low-cost operational efficiency.