For people trying to put together a round the world itinerary with a lot of one way business or first class
segments on different airlines, 100,000 AA miles can be a nice asset.
In these cases, LATAM prices each leg of the flight separately, using two
different systems.If you are traveling to South America from somewhere in the U.S. that LATAM doesn't serve, you'll pay 70,000 kilometers for the LATAM leg, then an additional distance - based price
on the
segments with the partner
airlines.