DL 516 then 1I 882 at Atlanta
Dallas → Atlanta → Baltimore
Timetable, Atlanta time
09:15DL 516 from Dallas at the gate
15:241I 882 to Baltimore leaves the gate
6 h 09 apart on the timetable
The last days
DL 516 and 1I 882 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.