John Murtha Johnstown–Cambria County Airport (IATA: JST, ICAO: KJST, FAA LID: JST) is a civil-military airport 3 miles (4.8 km) northeast of Johnstown, in Richland Township, Cambria County, Pennsylvania. It is owned by Johnstown–Cambria County Airport Authority and is named after the late Congressman John Murtha. It sees one airline, subsidized by the Essential Air Service.

The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a non-primary commercial service airport (between 2,500 and 10,000 enplanements per year).

Johnstown–Cambria County Airport is home to several military units. The airport houses the Pennsylvania Army National Guard's 1-104th Attack Reconnaissance Battalion (Company's HHC, A, C, D, and E) and Det 1, Company C, 2-104 General Support Aviation Battalion (Air Ambulance). It also houses the 258th Air Traffic Control Squadron (258 ATCS) of the Pennsylvania Air National Guard, and Marine Wing Support Squadron 471 (MWSS-471), Detachment A of the 4th Marine Aircraft Wing (4th MAW) of the U.S. Marine Corps Reserve. The aerial military units fly helicopters rather than fixed-wing aircraft.

Currently, the airport is served by United Express CRJ-200 aircraft operated by SkyWest to Washington Dulles and Chicago O’Hare.