St. Louis Lambert International Airport

St. Louis Lambert International Airport (KSTL) sits 11 miles northwest of downtown St. Louis. Commercial service is the dominant activity (Southwest is the largest carrier) and the field handles a meaningful flow of business aviation alongside it. For St. Louis-area private aviation, KSUS (Spirit of St. Louis Airport in Chesterfield, 17 miles west of downtown) is the dedicated business-aviation reliever and is the typical broker default for the metro. The four runways at KSTL (12R/30L 11,019 ft, 12L/30R 9,003 ft, 6/24 7,602 ft, 11/29 7,607 ft) handle every current business jet without restriction. Signature operates the principal private terminal. Field elevation is 605 feet, no density-altitude concerns. The dominant operational considerations are severe-weather season (spring and early summer — tornados and large hail are real risks), summer thunderstorms, winter freezing rain and ice events, and the standard Midwest weather pattern. KSTL makes sense for private aviation primarily for large-cabin VIP arrivals and the occasional charter where the major-airport experience is preferred over KSUS. Ground time to downtown St. Louis is 15–25 minutes via I-70.