This deal has been going on since last weekend, see these 2 here

https://www.flyertalk.com/forum/prem...-1400-cad.html (from Canada)

AM: LAX/SFO-LIM/GRU/Eze from $630 rt in J (from US)

In fact you can go as low as $670 with MIA-SCL.

Many people are still on the fence as we don't know how long the current travel restrictions will be in place and having to deal with AM's CSR shall anything go wrong (IRROP and cancellations ).

I'd only recommend this deal only if

1. Your travel date is after September (I'm not even sure about September at this point).
2. You need to meet certain credit card sign-on bonus spend and your time is running out.

I have both of above and even I'm not ready to pull the trigger (eye $667 MIA-SCL and hoping it stays for a while).