AA 3212 then AA 338 at Phoenix
Nashville → Phoenix → Chicago O'Hare
Timetable, Phoenix time
10:13AA 3212 from Nashville at the gate
12:23AA 338 to Chicago O'Hare leaves the gate
2 h 10 apart on the timetable
The last days
AA 3212 and AA 338 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.