Southwest Airlines, accessible via southwest.com, is a major American airline headquartered in Dallas, Texas. Known for its low-cost carrier model, Southwest Airlines is one of the largest domestic airlines in the United States, offering extensive flight services across the country. The airline is renowned for its customer-friendly policies, such as no change fees and free checked bags, which have contributed to its strong customer loyalty. Southwest operates a point-to-point route structure, which allows for more direct flights and efficient travel. The company emphasizes a fun and friendly flying experience, with a focus on customer service and operational efficiency.