AA 21 then AA 1313 at DFW
London → Dallas-Fort Worth → Nashville
Timetable, Dallas-Fort Worth time
14:25AA 21 from London at the gate
15:21AA 1313 to Nashville leaves the gate
56 min apart on the timetable
The last days
AA 21 and AA 1313 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.