Regarding the IATA airport code , some Canadian airports use arbitrary letters assigned to them , such as YQX in Gannder and YLW in Kelowna .
Many Canadian airports simply append a combinations of letters in the city 's name to the `` Y '' : YOW for Ottawa , YYC for Calgary , and YVR for Vancouver , whereas other Canadian airports simply use the arbitrary letters assigned to them , such as YQX in Gannder and YLW in Kelowna .
IATA airport code