United Air Lines Flight 389

United Air Lines Flight 389 was a scheduled flight from LaGuardia Airport, New York City, New York, to O'Hare International Airport, Chicago, Illinois. On August 16, 1965, at approximately 21:21 EST, the Boeing 727 crashed into Lake Michigan 20 miles (17 nmi; 32 km) east of Fort Sheridan, near Lake Forest, while descending from 35,000 feet (11,000 m) mean sea level (MSL).