AA 4203 then AA 2506 at Phoenix
Burbank → Phoenix → Chicago O'Hare
Timetable, Phoenix time
19:17AA 4203 from Burbank at the gate
05:30AA 2506 to Chicago O'Hare leaves the gate
10 h 13 apart on the timetable, overnight
The last days
AA 4203 and AA 2506 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.