Southwest to Retire All 737NGs by 2031 (simpleflying.com)

Southwest Airlines plans to retire its entire fleet of 456 Boeing 737-700 and 737-800 aircraft by 2031, consolidating operations around the 737 MAX 7 and MAX 8. The carrier aims to standardize on a single engine type to reduce maintenance costs and improve fuel efficiency, while selling younger 737-800s into a high-demand secondary market.