DL 1553 then WN 463 at Denver
Salt Lake City → Denver → Knoxville
Timetable, Denver time
12:03DL 1553 from Salt Lake City at the gate
11:30WN 463 to Knoxville leaves the gate
23 h 27 apart on the timetable, overnight
WN 463 leaves 23 h 27 after DL 1553 arrives on the timetable: more than half a day, so not a connection we count.