I just came across a really interesting one-way (assymetric) demand.
MEX-CRP aircraft full, no inbound or outbound transfers. CRP-MEX aircraft flying virtually empty, no inbound and 5 outbound transfers. Which means direct pax on CRP-MEX are virtually non-existent, while MEX-CRP they fill up the plane 3 days in advance.
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This is a major issue. I have a number of similar cases, I have played AS for 10 years and never seen such bad demand issues like this. Urgent fix required
Just thought Id add some examples
Filling up 3 days in advance, but the return leg getting no one. (They have the same connection options)
the flight is feed in contrast to the return flight, you should check connections 
in rubiohiguey2000’s example, this is not the case in either direction
In principle, all demand is balanced. Meaning if 100 pax want to go from A to B, then 100 pax want to go from B to A. But distribution in both directions happens independently, so there is absolute no guarantee that demand for a given carrier will be the same in both directions.
There’s also the non-transparency of ground networks, as that traffic does not show up as “connecting” but as organic. So it might be that the filled flights in one direction just got traffic from a local ground network.
I can assure you its the same connections in both directions 
In principle yes, but it really does not seem that way at all.
