Saint-Jean Airport (IATA: YJN, ICAO: CYJN) is located in the southwestern section of the city of Saint-Jean-sur-Richelieu, Quebec, Canada. The airport handles general aviation traffic and is also the main site of the annual International Balloon Festival of Saint-Jean-sur-Richelieu. Summer also sees a major increase in the number of movements due to the Royal Canadian Air Cadets glider center held at the airport.