- The Latrobe airport is located in Unity Township, Pennsylvania, near the city of Latrobe. It is officially known as Arnold Palmer Regional Airport and is a small regional airport serving the Westmoreland County area. The airport offers commercial flights to various destinations within the United States and Canada. It is named after the famous golfer Arnold Palmer, who was a native of Latrobe. The airport is operated by the Westmoreland County Airport Authority and serves as an important transportation hub for the region.