Originally Posted by
pitz
Most of the decision making at AC likely involves small incremental tradeoffs. For instance, YXE-YYZ can be served with an E75, E90, or 319. YQR-YYZ can also be served with the same. If YXE-YYZ produces higher yields than YQR-YYZ, then YQR will get downgauged to an E75, while YXE might get upgauged to an E90 or 319. Price-based rationing works extremely well at pushing away excess traffic, as does flying seats empty pushes away excess capacity.
Interestingly, AC 1119 YYZ-YQR on March 4 was the first time in several months that I've seen more than one or two empty seats on an AC flight between those markets, and I've flown six legs on that route in the last few months. It's been busy.