For 2026 air travel, a fanny pack is generally treated as a personal item (like a purse) if it is carried, but it occupies a unique "gray area" if worn. Most major airlines like Delta and United are lenient; if you wear a low-profile fanny pack under a jacket or as part of your outfit, it is rarely counted toward your baggage quota. However, budget carriers like Spirit, Frontier, and Allegiant are much stricter; they typically count a worn fanny pack as your one allowed personal item. If you are already carrying a backpack and a carry-on, a gate agent may ask you to "consolidate" by tucking the fanny pack inside one of your larger bags before boarding. To be safe, treat your fanny pack as your "purse" for essentials like your passport and phone, but be prepared to hide it or pack it away if the airline enforces a strict "two-item" limit.