AA 552 then AA 4008 at DFW
Atlanta → Dallas-Fort Worth → Nashville
Timetable, Dallas-Fort Worth time
19:10AA 552 from Atlanta at the gate
19:55AA 4008 to Nashville leaves the gate
45 min apart on the timetable
The last days
AA 552 and AA 4008 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.