Originally Posted by
ND76
The "pay per use" "Airborne Lounge" is the former United Red Carpet Club between Gates D10 and D12, on the right side of the Y.
Hi ND,
We are
Airspace Lounge 
and we hope you had a chance to pop your head in the door. Keep in mind that our price is $17.50 and that includes any food item on our menu or a drink from our bar.
American Express Platinum and Centurion card members have complimentary access for themselves and family/2 guests and each receives that complimentary meal or drink.
We're very pleased that Delta has joined us on concourse D and hope to see you soon at Airspace.