Originally Posted by
Stranger
But most other costs are the same. So It would only be when you regularly cannot fill up the larger plane that this would become an advantage.
If you can fill them, of course. And I wasn't suggesting you could not do so on Rapidair routes. Just an example of route length.
And basic economics dictate that even if a CS300 has a better CASM on most routes it still costs more to fly a CS300 than a CS100 so if you can't fill a CS300 then it's still more cost effective to use a CS100 net overall.
So there are routes that exist that are best suited for a CS100. For AC those are few and far between so there is zero reason for AC to get them.