5X 602 then AA 9951 at O'Hare
Louisville → Chicago → Charlotte
Timetable, Chicago time
03:355X 602 from Louisville at the gate
12:00AA 9951 to Charlotte leaves the gate
8 h 25 apart on the timetable
Today
From the airport’s board at 23:45 Chicago time
03:375X 602 reached the gate2 min late
16:53AA 9951 left the gate4 h 53 late
13 h 16 between the gates
The last days
5X 602 and AA 9951 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.