Originally Posted by
FlyerBeek
Correct. $29 is the price for both Gold/Platinum Delta SkyMiles AMEX cardholders and for guests accompanying Delta Reserve AMEX cardholders.
-FlyerBeek
Small technical point; being a cardholder isn't enough. You actually have to use the card for the transaction. (I have the DL one but wanted to put a day pass on a different card; they wanted the full $59 in that case.)