QANTAS will acquire 14 additional mid-life Dash 8-400 aircraft (Q400), bringing the number of Q400 aircraft in the fleet to 45.
Westjet, Canada’s leading low-cost airline, operates a fleet of 35 DeHavilland Dash 8-400 aircraft.

The Westjet Q400s on the Wikipedia webpage lists the fleet size as 47, 12 aircraft more than the number given on the carrier’s homepage.

And that number may be shrinking further given QANTAS will acquire 14 aircraft, with the first aircraft arriving into country by the end of the calendar year.