Generally speaking, most airlines allow carry-on bags that are 22 inches tall, 14 inches wide, and 9 inches deep. But, and this is a big but, some airlines have slightly different requirements, so it's always best to check with your airline before your trip. You don't want to show up at the gate only to find out your bag is too big!
Now, you might be wondering, why are there size requirements in the first place? Well, it's all about safety and space. Airlines need to make sure that everyone's carry-on bags fit comfortably in the overhead bins, and that there's enough room for everyone to stow their gear. It's like a big game of tetris, except with luggage!
But, what happens if your bag is too big? Don't worry, you won't be forced to check it (although, let's be real, that's always a possibility). Most airlines will allow you to gate check your bag, which means you can stow it in a special area near the gate and pick it up as you exit the plane. It's like a special luggage limbo!
