UA 792 then WN 1037 at Denver
Washington → Denver → Phoenix Sky Harbor
Timetable, Denver time
10:29UA 792 from Washington at the gate
06:00WN 1037 to Phoenix Sky Harbor leaves the gate
19 h 31 apart on the timetable, overnight
WN 1037 leaves 19 h 31 after UA 792 arrives on the timetable: more than half a day, so not a connection we count.