Lindbergh High School is a proud member of the Missouri State High School Activities Association and the Suburban West Conference. Athletic competition is governed by the rules and regulations of these organizations, with the exception of local rules which may be adopted there necessary.
The Suburban West Conference features two divisions based on total school enrollment. The Flyers are members of the American Division, which includes Eureka, Lafayette, Marquette and Parkway South. The National Division features traditional rivals Mehlville and Oakville, as well as Fox, Northwest and Seckman.