UA 3924 then AA 5158 at Atlanta
Chicago O'Hare → Atlanta → Charlotte
Timetable, Atlanta time
01:29UA 3924 from Chicago O'Hare at the gate
10:37AA 5158 to Charlotte leaves the gate
9 h 08 apart on the timetable
The last days
UA 3924 and AA 5158 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.