AA 5320 then DL 5175 at Atlanta
Washington National → Atlanta → Knoxville
Timetable, Atlanta time
08:30AA 5320 from Washington National at the gate
16:35DL 5175 to Knoxville leaves the gate
8 h 05 apart on the timetable
The last days
AA 5320 and DL 5175 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.