Do NOT Pack Your Carry On Until You Check These 12 Rules!

✈️ Think your carry-on is airline-proof? Most travelers pack using myths that haven't been true in years — from universal size limits that don't exist, to battery rules nobody reads until it's too late. This video breaks down twelve real carry-on rules, where they come from, and why airlines rarely explain them clearly at the gate. 🧳 You'll learn why a bag that's fine on one airline gets gate-checked on another, why boarding group number matters more than bag size, why peanut butter technically counts as a liquid, and why international carriers sometimes weigh your carry-on at check-in. Each rule includes the real policy behind it, not just a warning. ⚠️ If you're flying soon, this could save you a gate-check fee, a confiscated item, or a stressful moment at security. Watch until the end for the two rules that cause the most expensive mistakes. 👉 No universal carry-on size exists across airlines 👉 Boarding group often decides bin space, not bag size 👉 Power banks must travel in carry-ons, not checked bags 👉 Peanut butter counts as a liquid under TSA rules 👉 Some international airlines weigh carry-ons separately 👉 Bottle airspace prevents altitude-related leaks #carryon #airtravel #tsa #packingtips #flyingtips #airlinerules ⏱ Chapters: 0:00 ✈️ Carry-On Size Myths 2:51 🧳 Liquids and Batteries Explained 9:53 🧳 Bin Space Math 11:57 🍷 Duty-Free Loophole