DL 567 then AA 4328 at Atlanta
Seattle → Atlanta → Washington National
Timetable, Atlanta time
06:12DL 567 from Seattle at the gate
10:54AA 4328 to Washington National leaves the gate
4 h 42 apart on the timetable
The last days
DL 567 and AA 4328 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.