CALGARY, June 21, 2018 /CNW/ - WestJet's regional airline, WestJet Encore, is celebrating five years of bringing choice and competition to regional markets across Canada, lowering airfares and creating jobs and economic growth. Since its launch in 2013 powered by two Bombardier Q400 aircraft, WestJet Encore has operated more than 300,000 flights and has expanded its fleet of Canadi..