Southwest Airlines is famous for its "Bags Fly Free" policy, which allows every passenger to check two bags for free, provided they meet weight and size requirements. Each checked bag must weigh 50 pounds (22.6 kg) or less and have a maximum physical size of 62 inches (length + width + height combined). This policy applies to all fare classes, including "Wanna Get Away." In addition to these two checked bags, you are also allowed one carry-on bag for the overhead bin and one personal item (like a purse or laptop bag) to stow under the seat in front of you. This means you can technically travel with four pieces of luggage without paying a single baggage fee. For 2026, Southwest remains the only major U.S. carrier to offer two free checked bags as a standard feature, though fees still apply for bags that are overweight (51-100 lbs) or oversized (exceeding 62 inches).