อายุเฉลี่ยของอากาศยานพาณิชย์

Aircraft are designed for 20 to 30 years of service, though some fly much longer with proper maintenance. Airlines in developed markets tend to operate younger fleets for fuel efficiency, while carriers in developing regions often purchase second-hand aircraft. The COVID-19 pandemic accelerated retirements of older aircraft types like the Boeing 747 and Airbus A380.