Logan County Airport (ICAO: KAAA, FAA LID: AAA) is a public use airport located 2.2 nautical miles (4 km) northeast of the central business district of Lincoln, a city in Logan County, Illinois, United States.

The airport is home to the Heritage in Flight Museum, which focuses on preserving military displays.

The airport is located in an authentic WWII barracks relocated from Camp Ellis.

[4] Logan County Airport covers an area of 218 acres (88 ha) at an elevation of 597 feet (182 m) above mean sea level.

[5] For the 12-month period ending August 31, 2019, the airport had 7,000 aircraft operations, an average of 19 per day: 80% general aviation, 19% air taxi and 1% military.