Both American and Delta Airlines have round trip airfares travelling to and from Dallas (DFW) and Atlanta (ATL) for $108, nonstop. You may or may not be on the same airline returning so be aware and both airlines' fares are basic economy.
Departs DFW: June 5, 11, 12, 19; July 2, 9-10, 16-17, 23-24, 30-31; Aug 6-7
Departs ATL: June 5, 12, 19; July 9-10, 16-17, 23, 30-31; Aug 6-7
My sample travel dates July 10-17, 2018 ATL-DFW-ATL
To book this, enter travel information on Skyscanner [skyscanner.com]
and then select your flights and favorite OTA to book with. For hotels, check out Hotwire's Hot Rates [hotwire.com] [hotwire.com]
hotels or look for latest promotions here [hotels.com]