KSUA is the ICAO code for Witham Field (IATA SUA), located in Stuart, FL.
Witham Field Airport (KSUA) sits in Stuart, Florida, on Florida's Treasure Coast. The two runways (5,824 ft, 4,651 ft) handle most current business jets up through heavy operations. Multiple FBOs handle business movements. Field elevation 17 ft, no density-altitude concerns. Stuart is the structural gateway to Hutchinson Island, Sailfish Point, and the broader Martin County luxury corridor. Heavy winter snowbird peak. Ground time to downtown Stuart is 10 minutes; Sailfish Point is 15.