Southwest Airlines has a simple and unique way of boarding. There are no assigned seats—you pick any open seat when you get on the plane. Passengers are given a group (A, B, or C) and a number (1–6. The lower your number, the earlier you board. Check in early (24 hours before the flight) to get a better spot. Visit: https://www.airlinesticketoffi....ce.com/blog/southwes