Arnold Palmer Regional Airport (IATA: LBE, ICAO: KLBE, FAA LID: LBE) is in Westmoreland County, Pennsylvania, United States, two miles (3 km) southwest of Latrobe and about 33 miles (53 km) southeast of Pittsburgh. It was formerly Westmoreland County Airport; it was renamed in September 1999 for Arnold Palmer as part of his 70th birthday celebration. Palmer learned to fly at the airport, and the dedication ceremony included Governor Tom Ridge and a flyover of three A-10s of the Pennsylvania Air National Guard.

The Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021 categorized it as a non-hub primary commercial service facility.

Passenger traffic at the airport has significantly grown since Spirit Airlines began serving the airport in 2011, jumping from roughly 10,000 passengers in 2010 to 310,000 passengers in 2019, a 3000% increase. Spirit Airlines is the only commercial passenger carrier and currently flies two nonstop routes to one city in Florida and one city in South Carolina from the airport.