So, to catch you up to what was written above you I have a low mileage award DTW-ICN-DTW but can't get to/from DTW at low from any of the nearby airports in any class without spending multiple nights in DTW.

So I've already done the supposedly hard bit, and I can't be that flexible on dates... ^

What this thread is about is Delta not seeming to offer ANY low awards on flights that are currently empty or near empty in the class of service being inquired about, and sometimes the other one too...