Originally Posted by
canadiancow
Search YYZ-YVR and compare the results to AC's website and UA's website. Unchecking that box definitely removes a ton of AC-operated itineraries.
To clarify something though, this will only show availability that can be booked through AC. You won't see SQ F or UA IN, etc.
Alright thanks, now if only the airlines themselves just went with something like this!