WN 471 then DL 4048 at Phoenix
Tucson → Phoenix → Austin
Timetable, Phoenix time
19:05WN 471 from Tucson at the gate
18:28DL 4048 to Austin leaves the gate
23 h 23 apart on the timetable, overnight
DL 4048 leaves 23 h 23 after WN 471 arrives on the timetable: more than half a day, so not a connection we count.