Southwest Airlines SWF Terminal has an open seating policy, which means that no seats are assigned. Rather, boarding groups A, B, or C are assigned to passengers according to their check-in time. You can choose any open seat once you're on board. Passengers in the Business Select category might board early for greater seating options and additional comfort. There is enough of legroom and comfortable sitting in the cabin, and the absence of assigned seats encourages a flexible and easy boarding process.