Originally Posted by
YXUFlyboy
It shows as "Other ATC charges" but if you use ITA Matrix you will see Carrier Surcharge (YQ) for WS flights.
Gotcha. On that sector (YXUYYZ) WS site lists that $16 as "Other ATC"
That said, while WS has YQ for $16, and AC does not, both are selling for the exact same $219.36 all in. If WS breaks it out as YQ and AC does not, I don't see a material impact. One builds it into the fare, one breaks it out. I do know WS likes to take every opportunity to publicly demonstrate the severely onerous tax and fee regime under which Canadian carriers must compete. This may be just that.