AA 1414 then DL 3876 at Denver
Phoenix Sky Harbor → Denver → Austin
Timetable, Denver time
10:43AA 1414 from Phoenix Sky Harbor at the gate
09:42DL 3876 to Austin leaves the gate
22 h 59 apart on the timetable, overnight
DL 3876 leaves 22 h 59 after AA 1414 arrives on the timetable: more than half a day, so not a connection we count.