American Airlines is getting strict with carry-on sizes—no more sneaking in that slightly oversized bag! New rules in Europe mean AA and other airlines are tightening up, and airports like Miami are already enforcing the limits hard. Even a tiny bit over? You might have to check your bag (and pay up). On the bright side, AA is testing a new system so you don’t have to recheck bags on some international layovers. Double-check your bag size before you fly! #TravelTips #AirlineNews #BaggagePolicy #AmericanAirlines #TravelHacks #Travel