Lounge Access Flying Delta Business
Just flew LAX-SYD-Ayers Rock. LAX-SYD was in Delta Business. For the Ayers Rock leg, my wife had a Business ticket and I was in economy on VA. I was not allowed access to the lounge in the Domestic Terminal in Sydney because of my onward continuing economy flight.
However, they did ask me about credit cards and when I showed them my American Express Platinum card I was allowed in, which I don't think is valid.
Flew 2 other flights within Australia on Qantas in economy and much preferred Qantas.