AA 3196 then DL 2350 at Philadelphia
Houston → Philadelphia → Atlanta
Timetable, Philadelphia time
12:09AA 3196 from Houston at the gate
18:10DL 2350 to Atlanta leaves the gate
6 h 01 apart on the timetable
The last days
AA 3196 and DL 2350 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.