Welcome, Nelly. I recently bought a starter position in ACDVF on the OTCQX in the mid $13's since I am in the US.
I was looking to buy Delta and American Airlines, but I was drawn to Air Canada since I felt Canada will not let its #1 airline fail, IMO. The price drop was a great entry point for me.
Looking to see $30 and above again in the near future. ;-)