AA 644 then AA 5164 at DFW
Salt Lake City → Dallas-Fort Worth → Knoxville
Timetable, Dallas-Fort Worth time
10:45AA 644 from Salt Lake City at the gate
18:30AA 5164 to Knoxville leaves the gate
7 h 45 apart on the timetable
The last days
AA 644 and AA 5164 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.