On the points redemption for this route I'd say it's probably one of the toughest I've seen in the SkyMiles system. Depending on the time of year you may get lucky; bear in mind that Air France also flies this route several times per week which may have slightly better availability. If you're trying to book over one of the major holidays I'd say it's just about guaranteed that there won't be anything available but you may get lucky! I've tried for several years in a row and always end up in Hawaii on a paid ticket instead.
Still saving up those SkyPesos.
Edited to add that I'll assume you're targeting LAX-PPT here (and not LAX-CDG).