AA 4344 then AA 2174 at O'Hare
Memphis → Chicago → Charlotte
Timetable, Chicago time
12:41AA 4344 from Memphis at the gate
13:22AA 2174 to Charlotte leaves the gate
41 min apart on the timetable
The last days
AA 4344 and AA 2174 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.