UA 2802 then DL 796 at O'Hare
Houston → Chicago → Atlanta
Timetable, Chicago time
10:11UA 2802 from Houston at the gate
15:00DL 796 to Atlanta leaves the gate
4 h 49 apart on the timetable
Today
From the airport’s board at 23:09 Chicago time
10:19UA 2802 reached the gate8 min late
16:17DL 796 left the gate1 h 17 late
5 h 58 between the gates
The last days
UA 2802 and DL 796 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.