WN 209 then WN 1737 at Salt Lake City
Dallas → Salt Lake City → Denver
Timetable, Salt Lake City time
15:30WN 209 from Dallas at the gate
15:10WN 1737 to Denver leaves the gate
23 h 40 apart on the timetable, overnight
WN 1737 leaves 23 h 40 after WN 209 arrives on the timetable: more than half a day, so not a connection we count.