AA 2555 then AA 2244 at DFW
Tucson → Dallas-Fort Worth → Nashville
Timetable, Dallas-Fort Worth time
11:25AA 2555 from Tucson at the gate
15:19AA 2244 to Nashville leaves the gate
3 h 54 apart on the timetable
The last days
AA 2555 and AA 2244 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.