Most airlines have similar size limits for carry on bags, but it's always a good idea to check with your specific airline before you fly. Generally, carry on bags can be no larger than 22 inches tall, 14 inches wide, and 9 inches deep - but don't even think about trying to sneak a guitar or a surfboard on board, those are definitely not allowed! The airlines are pretty strict about these limits, and if your bag is too big, you'll have to check it, which can be a real hassle.
But here's the thing: just because your bag fits in the overhead bin doesn't mean it's automatically allowed. Some airlines have specific requirements for carry on bags, like wheels and handles, and if your bag doesn't meet those requirements, you might be out of luck. And don't even get me started on liquids and gels - those have their own set of rules, and if you don't follow them, you'll be tossing your toiletries in the trash!
