Delta Loyalty Program Changes Reward Biggest Spenders Most
Wall Street Journal
The carrier is shifting to a model that ties status exclusively to how much people spend, either on travel with the airline and its partners, on co-branded credit cards, or by booking hotels, rental cars and vacation packages through Delta channels.
https://www.wsj.com/articles/delta-loyalty-program-changes-reward-biggest-spenders-most-dcefa85e