Originally Posted by carlosdca

Regardless of anecdotal recent experience of the contrary, there is always a risk they will weigh your bag.
A 22" carry-on is always a prime suspect of being above 8kg.
Worst case scenario, they will weigh your bag as you stand in line to board and they will make you check it.
If they make you pay for it because your fare does not include a checked bag; it seems it is 11,000 CLP ($15) per bag for domestic Chile flights.