AA 725 then AA 3188 at O'Hare
Los Angeles → Chicago → Charlotte
Timetable, Chicago time
16:05AA 725 from Los Angeles at the gate
16:45AA 3188 to Charlotte leaves the gate
40 min apart on the timetable
The last days
AA 725 and AA 3188 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.