Do not assume that you can get two LOW coach award tickets from CVG to Hawaii with DL miles on the same flights or even on the same days. The low award level should be considered to be only a theoretical possibility; even if you have lots of flexibility you should not count on being able to get such award tickets from DL without using many more miles or paying for connecting flights, in this case, probably between CVG and ATL or the West Coast, either of which is likely to be expensive.