Valcourt Airport (TC LID: CSQ3) is located 1 nautical mile (1.9 km; 1.2 mi) south of Valcourt, Quebec, Canada.

The runway was built on the right-of-way of an old Canadian Pacific Railway branch line that once ran between the towns of Eastman and Windsor Mills, Quebec. In 2005, the 3,750 ft (1,143 m) runway was repaved, with the centre 20 ft (6.1 m) being asphalt, with gravel on each side.