US Airways Dividend Miles' award chart's best feature was the Northern Asia Business Class deal which you could route with a trusty agent through Europe (or almost anywhere) to Northern Asia.
This largely went away in the early days of the merger with American Airlines. But there is still a deal left!
You can still get the 90,000 miles deal from the Caribbean, Central America or Mexico to South & Central Asia.
Afghanistan, Bangladesh, Brunei, Cambodia, Chagos, India, Indonesia, Laos, Malaysia, Maldives, Myanmar, Nepal, Pakistan, Philippines, Singapore, Sri Lanka, Thailand, and Vietnam
US Airways lets you route through almost anywhere as long as the route is rather straightforward (and not circular).
e.g. MEX-DFW-DOH-CGK-DOH-DFW-CUN 26,394 miles in Business Class (and hey, Qatar has been rated the best in class by Skytrax)
You can also use Cathay Pacific for some creative routings over the Pacific.
While agents may give you some pushback, I have had multiple bookings that route over both oceans – i.e. Atlantic on the way out and Pacific on the way back.
There is no reason to return all the way to Mexico – you may just happen to forget your last flight (make sure it routes through the US). The initial flights need to be taken though.
45,000 miles per leg (US Airways still only books for the price of a round trip ticket) is a great price!
Bonus: If you have read this far… Has anybody ever heard of Chagos?? (shown above …Cambodia, Chagos, India…)
I hadn't either but Wikipedia defines it as a small archipelago of islands south of the Maldives. Too bad it doesn't have civilian flights!