DL 8838 then DL 2339 at Atlanta
Memphis → Atlanta → Houston
Timetable, Atlanta time
07:28DL 8838 from Memphis at the gate
16:40DL 2339 to Houston leaves the gate
9 h 12 apart on the timetable
The last days
DL 8838 and DL 2339 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.