Dane County Regional Airport

Dane County Regional Airport, also known as Truax Field, is a civil-military airport located 6 nautical miles northeast of Downtown Madison, the capital of Wisconsin. In the Federal Aviation Administration National Plan of Integrated Airport Systems for 2021–2025, it is categorized as a small-hub primary commercial service facility. It is the second busiest of eight commercial airports in Wisconsin in terms of passengers served, after Milwaukee Mitchell International Airport.

Source: Wikipedia