I'm going to miss Airtran. I transferred all of my Credits to Southwest to create Standard Awards and leave .25 Credit I can top off with Southwest Points.
My wife warned 930.25 credits and has been Elite since they started it.
I've only earned 408.25 credits NA have been Elite almost as long as my wife.
Almost all of the credits are from flying although a few were transferred for American Express and Southwest or came for various promotions.