AA 4044 then AA 2648 at DFW
Lubbock → Dallas-Fort Worth → Nashville
Timetable, Dallas-Fort Worth time
07:25AA 4044 from Lubbock at the gate
13:57AA 2648 to Nashville leaves the gate
6 h 32 apart on the timetable
The last days
AA 4044 and AA 2648 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.