Barrie-Lake Simcoe Regional Airport (IATA: YLK, ICAO: CYLS) is a small regional airport located near Barrie, Ontario, Canada. It serves the greater Simcoe County area, primarily handling general aviation, charter flights, and flight training operations rather than scheduled commercial airline service. The airport is owned and operated by the City of Barrie and plays a supporting role in the regional transportation network. While it does not offer major scheduled passenger routes, it serves as a base for private aircraft, corporate aviation, and local flight schools. Barrie is located roughly 90 kilometres north of Toronto, and many travellers in the region rely on Toronto's major airports for long-haul and commercial travel. Lake Simcoe Regional Airport nonetheless provides important aviation infrastructure for the growing Barrie metropolitan area.