Montreal / Mascouche Airport

The airport was closed primarily due to economic reasons driven by urban development. The land, located in a rapidly growing suburb of Montréal, became more valuable for real estate than for aviation. The airport's owners sold the property to a private real estate developer, Groupe MACH, for a large-scale commercial and residential project. Contributing factors included increasing pressure from noise complaints from the surrounding residential communities that had grown up around the airport over the decades.

The airport site has been completely and irreversibly redeveloped. The runways, taxiways, and hangars have been demolished. The land is now occupied by a large commercial shopping complex called 'SmartCentres Mascouche', which includes major retailers like Walmart, Canadian Tire, and numerous other stores and restaurants. The surrounding area has also seen extensive residential development. As a nod to its past, the main thoroughfare built through the new development is named 'Avenue de l'Aéroport' (Airport Avenue).

Opened in 1977, Mascouche Airport (CSK3) was a vital general aviation hub for the Montréal North Shore region for nearly 40 years. It was not a military or major commercial passenger airport, but rather a cornerstone of the local aviation community. Its primary operations included:

- **Flight Training:** The airport was home to several prominent flight schools, most notably Cargair, one of Canada's largest and most respected pilot training academies. Cargair attracted student pilots from across Canada and internationally, making the airport a significant center for aviation education.
- **Private Aviation:** It served hundreds of private aircraft owners, providing hangar space, tie-downs, and essential services.
- **Aircraft Maintenance:** Several aircraft maintenance organizations (AMOs) operated from the field, providing services to the local aviation community.
- **Charter and Commercial Services:** While not a scheduled airline hub, it supported some small charter operations and other commercial aviation activities.

At its peak, it was one of the busiest general aviation airports in Quebec, handling a high volume of takeoffs and landings, mostly from training flights. Its closure represented a significant loss of aviation infrastructure in the greater Montréal area.

There are zero prospects for the airport reopening. The land has been fully re-purposed for high-density commercial and residential use, and the original aviation infrastructure has been entirely erased. The sale and redevelopment were final, marking a permanent end to aviation activities at this location.