WN 3752 then WN 3519 at Salt Lake City
San Diego → Salt Lake City → Denver
Timetable, Salt Lake City time
19:35WN 3752 from San Diego at the gate
16:35WN 3519 to Denver leaves the gate
21 h apart on the timetable, overnight
WN 3519 leaves 21 h after WN 3752 arrives on the timetable: more than half a day, so not a connection we count.