DL 1452 then WN 3519 at Salt Lake City
Spokane → Salt Lake City → Denver
Timetable, Salt Lake City time
16:38DL 1452 from Spokane at the gate
16:35WN 3519 to Denver leaves the gate
23 h 57 apart on the timetable, overnight
WN 3519 leaves 23 h 57 after DL 1452 arrives on the timetable: more than half a day, so not a connection we count.