Originally Posted by
Winkdaddy
No! ROUND TRIP tickets to Asia in business should costs 120,000 miles.
That's true, but Delta doesn't offer one-ways at less than round-trip mileage requirements, so the minimum on a one-way search for Asia would be 120K.
The method is to find two one-ways that each price out at 120K, and then assemble the route using multi-city so that the round-trip returns a 120K price. That's a bit of an oversimplification, but you get the idea. For more detail, review Denolloyd's full method.