UA 1384 then WN 581 at Denver
Kansas City → Denver → Nashville
Timetable, Denver time
09:53UA 1384 from Kansas City at the gate
07:55WN 581 to Nashville leaves the gate
22 h 02 apart on the timetable, overnight
WN 581 leaves 22 h 02 after UA 1384 arrives on the timetable: more than half a day, so not a connection we count.