Southwest Airlines is ending its open seating model with a major retrofit of 800 Boeing 737s, introducing assigned seating, premium legroom, USB charging ports, and modern Recaro seats. The shift aims to boost revenue, attract premium travelers, and improve passenger experience. Set for completion by early 2026, the overhaul also includes phasing out “Bags Fly Free” for most passengers, signaling a broader strategic shift in the airline’s business model.