Originally Posted by mcjava

Going you won't be able to get in to a lounge, as DL's contract with JAL Sakura lounge is only for departures, not arrivals, and ANA is not part of Skyteam.

On the return, you will need to get your NRT-ATL boarding pass in NRT and the DL checkin people will give you an invitation to the Sakura lounge. Not much in the way of food, but free draft beer, red and white wine, and a few other things.