Sun ’n Fun Aerospace Expo (officially styled SUN 'n FUN) is a nonprofit organization in Lakeland, Florida dedicated to the promotion of aviation education. It is best known for the annual week-long fly-in and airshow at Lakeland Linder International Airport in Lakeland, Florida, usually held during late March or early April. Previously called the 'Sun ’n Fun International Fly-In and Expo, for 2020 the event was officially renamed the Sun ’n Fun Aerospace Expo in April 2019.