This hat appears very lightly worn. In overall great shape. Very minor discoloration of terrycloth sweatband inside. See photos for details.
More information than you probably need for a hat, but here are some interesting bits I found on the actual plane while researching.
Serial number: 28169 LN:757
First flight date: 05/16/1997
This plane was originally part of the TWA fleet before going to American Airlines, and finally to Delta.
Delivered to TWA 05/29/1997
Delivered to AA 12/02/2001
Delivered to Delta 10/16/2007