Yes, you can bring a pillow on a Frontier Airlines flight in 2026, but you must be strategic about it to avoid fees. If the pillow is a small "neck pillow" that you wear around your neck, most gate agents will ignore it and not count it as an item. However, if it is a full-sized bed pillow, Frontier’s strict 2026 baggage police may count it as your "one personal item." Since Frontier only allows one personal item (14"x18"x8") for free, a large pillow might prevent you from bringing a backpack or purse without paying a "gate fee" (which can be as high as $99). To "cheat" the system in 2026, many travelers use "stuffable" pillowcases, where they pack 2-3 days' worth of soft clothes inside a pillowcase and wear it around their neck. This keeps the pillow functional while effectively acting as extra "hidden" luggage that doesn't count toward your strict 2026 bag limits.