Comment thread "Landing fees" for Ottawa Macdonald-Cartier International Airport
Comments 1 to 3 of 3 in the thread "Landing fees" (Ottawa Macdonald-Cartier International Airport):
If you're paying a fee for landing, isn't it pretty much a given that you're also going to take off? So why don't they just increase the landing fee rather than imposing a takeoff fee as well?
The airport authority is collecting the landing fee, while Nav Canada is/will be collecting the usage fee.

Airline service
For private single-engine light aircraft, CAD $15/landing or a flat fee of CAD $30/month. Nav Canada will also introduce a fee for each takeoff, starting in 2008.