Southwest Airlines carry-on policy is designed to make your travel experience as smooth as possible. Understanding the southwest carry-on bag size regulations ensures that your bag fits the overhead compartments or under the seat in front of you. The southwest airline carry-on size rules help keep the cabin organized, reducing the chance of needing to check your bag. By following the airline’s guidelines, passengers avoid complications such as extra fees or the need for last-minute packing adjustments. Knowing these policies in advance will make your entire journey more pleasant and hassle-free.