AA 6468 then AA 4915 at O'Hare
St Louis → Chicago → Lexington
Timetable, Chicago time
15:03AA 6468 from St Louis at the gate
15:49AA 4915 to Lexington leaves the gate
46 min apart on the timetable
The last days
AA 6468 and AA 4915 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.