I'm flying Aerolineas on an early morning (before 7 am) domestic flight. I assume they will issue me an online boarding pass? I don't think I need to check any bags: i assume "normal" int'l carry-on bag rules apply? I also remember than Argentina doesn't have a "liquids rule" for domestic flights: like I could throw a bottle of wine into my carry-on?

So without checked bags, how long before my flight should I plan to arrive? I obviously don't want to stress about missing my flight, but I also don't want to needlessly hang around the terminal at 5 am. Thanks.