WN 3723 then DL 1451 at Phoenix
San Diego → Phoenix → Salt Lake City
Timetable, Phoenix time
20:55WN 3723 from San Diego at the gate
20:11DL 1451 to Salt Lake City leaves the gate
23 h 16 apart on the timetable, overnight
DL 1451 leaves 23 h 16 after WN 3723 arrives on the timetable: more than half a day, so not a connection we count.