Southwest Airlines became the US's largest domestic carrier by offering free bags and open seats — now it's upending one of its most well-known perks
- Southwest Airlines is ditching its signature unassigned seating policy.
- Southwest, the US's largest domestic carrier, celebrates its customer- and employee-focused mission.
- The airline found success using unconventional marketing and operational strategies.
Southwest Airlines is the US's largest domestic carrier, serving over 100 destinations across the country.