DL 8902 then DL 1585 at Atlanta
Pittsburgh → Atlanta → Houston
Timetable, Atlanta time
01:22DL 8902 from Pittsburgh at the gate
07:30DL 1585 to Houston leaves the gate
6 h 08 apart on the timetable
The last days
DL 8902 and DL 1585 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.