UA 439 then AA 538 at Phoenix
Austin → Phoenix → Charlotte
Timetable, Phoenix time
22:53UA 439 from Austin at the gate
05:00AA 538 to Charlotte leaves the gate
6 h 07 apart on the timetable, overnight
The last days
UA 439 and AA 538 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.