Originally Posted by
borisp
I am confused now... is there such a thing as one-way three region?
Yes, in the M&M program, you have to pay the higher number of miles for a 3 region award if you connect a 3rd region when travelling between two other regions, even if there is no other way to fly between the two regions:
Since you'd be connecting in North America during your trip from Australia/NZ to South America, you'd have to pay 50k miles in Y / 92.5k miles in J for a one-way trip.