You should also know, that DING is really best used by people who are at a computer with it downloaded and an open internet connection for the better part of the day. When you get "dinged" the specials are often only good for a few hours. I have it at work and have been able to take advantage. But if you have a Dialup connection, you get dinged only if you're on line. Also, Just because a ding fare is released, doesn't mean it will benefit you. Here's an example of BDL-MCO
"usual" cheap fares $79 - next tier $109
Internet one way specials frequently available $49
Ding fares $68, $115
I have seen times that DING fares come out a $68, but you can go the website and book for $49
I have also seen times that DING fares are $68 for 6/5-9/12, but the day I want to travel on, it is unavailable.