Wirelessly posted (BlackBerry8830/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/105)
NW has almost zero flights to S. America. From LAX you can use Copa and connect in PTY for most destinations. It is on a 737, with domestic F seats, but the flights are eligible for free upgrades (EUA) for NW & CO elites.
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