The flight route from Atlanta (ATL) to Dallas Fort Worth (DWL) is one of the busiest in the country, with over 20 direct flights a day. Although the airport is pretty much in between the two cities (20 miles from Dallas and 25 miles from Fort Worth), the cities are separated more by traffic than distance. Thus planning which city you want to visit will be the key to having a relaxed visit. The flight time is approximately 2 hours and fifteen minutes, in which time you will cover a distance of 719 miles from Georgia. Airlines offering a direct flight are: Spirit, Delta and American.
Some good deals on cheap flights are to be had with a few low-cost airlines. As one would expect you would need to take a few precautions to save money on your air ticket. Try to book far in advance and be willing to only take carry-on luggage, being sure to avoid peak travel periods like school vacations, holidays and weekends.
Though congestion between the two cities might be a problem, boredom will not. From cultural attractions in Fort Worth, like the Fort Worth Stockyards National Historic District to culture of a completely different kind in Dallas (the Dallas Cowboys stadium), your boots made for walking will be in full service. Getting to either city from the Dallas Fort Worth International Airport is relatively simple. Monday through Saturday you can use the Trinity Railway express to get from either city to the airport. Taxis, buses and shuttle services are also available.