A neck pillow is typically not counted as a separate personal item by most airlines; it is generally viewed as an "outer garment" or an accessory, similar to a coat or a hat. On major carriers like Delta, United, and American, you can wear it around your neck while boarding without it impacting your one-bag limit. However, budget airlines like Spirit or Frontier can be stricter; while they rarely charge for a neck pillow on its own, they may require it to be stowed inside your personal item bag if the gate agent feels it makes you exceed your carry-on allowance. A common "travel hack" for 2026 is using a stuffable neck pillow cover filled with clothes to save luggage space, though if it appears overly bulky, it might be scrutinized. For the smoothest experience, simply wear the pillow around your neck or attach it to your bag before reaching the gate.