Chattagnooga TN to Minneapolis or Vice Versa $161 RT on American Airlines (travel Aug-Oct)

American Airlines have round trip airfares travelling to and from Chattanooga TN (CHA) and Minneapolis (MSP) for $161 including taxes and fees. This makes 1 stop.
Travel Availability:
Departs MSP: Aug 23, 30; Sept 6, 12, 13, 20, 26, 27; Oct 3, 4, 7, 10, 11, 17, 24, 25
Departs CHA: Aug 30; Sept 6, 13, 19, 20, 27; Oct 3, 4, 10, 17, 18, 24, 25
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Sample attached.