Hello Ben and thanks for the info.
I am traveling to Arg next month and would like to fly from Cordoba>Bariloche (viaje ida y vuelta) before it gets too cold!
When I search for options on google flights, there are two links to purchase the tickets - one for Arg Residents, and another for non-residents (which costs 50% more).
Would this be one of the 'few and far between' fares, or are you saying that AA/LATAM, etc are not enforcing the residency rules?
thanks