How Southwest seating and boarding works

Southwest Airlines uses an open seating policy, which means there are no assigned seats on their flights. Instead, boarding is done by groups and positions. When you check in, you’ll receive a boarding group—A, B, or C—and a position number within that group, like A15 or B30. Passengers board the plane in order, starting with Group A, then B, then C, and within each group, by the position number. This system means the earlier you check in (up to 24 hours before your flight), the better your boarding position, allowing you to choose your preferred seat on the plane. Southwest also offers EarlyBird Check-In, which automatically checks you in before the standard 24-hour window, giving you a better chance at an earlier boarding position for a fee. Families with small children and passengers needing assistance usually board early. This open seating and boarding process encourages flexibility but requires passengers to be ready and prompt at boarding time.