Japan Airlines (JAL) has announced the purchase of 21 Boeing 737 MAX 8 (737-8) aircraft, which will begin operation in 2026. This will replace the current fleet of Boeing 737-800 aircraft, of which JAL owns 47 and leases 17, with the new model. The Boeing 737-8 aircraft has improved aerodynamic performance and new engines, which is estimated to reduce carbon dioxide (CO2) emissions by approximately 15% compared to the current Boeing 737-800 aircraft.