Try various US Gateways to BKK or SIN ... for best results.
http://www.flyertalk.com/forum/milea...-9-cpm-60.html
Other places are US Gateways to DXB or CPT or NBO.
http://www.flyertalk.com/forum/milea...ai-3-8cpm.html
http://www.flyertalk.com/forum/milea...t-685-a-2.html
Here is another idea; If you are going to be in Europe, then there are always great deals from CPH to US gateways and back: eg. cph-cdg-bos-Lga-bos-cdg-cph for $445 on DL
You also may want to consider subscribing to Delta Points blog.
Renee does a fab job of identifying DL MRs.