This is nuts. You will need therapy when you are done with this if you do it all in coach. I never say upgrade to C+ but in this case it may be worth the money. Oh and HT to FT for the find.
For this you are spending, other than a few hour long layover, three days in the air. Ugg. But if you have some bump vouchers and need over 20,000 MQMs to get to the next elite level, you may want to think about this one.
Here are the lowest numbers:
Cost: $745 via ATL both ways
21,874 MQMs at 3.4 CPM
Bookable on Delta.com via Kayak.com link HERE
I have included the Google Flights or Kayak links and for those of you new to this, 1st log in to your Delta.com SkyMiles account and THEN you click the above links and it will, after you choose flights, send them over to Delta.com. Very simple! – René