WN 549 then WN 1749 at Denver
Nashville → Denver → Dallas
Timetable, Denver time
07:25WN 549 from Nashville at the gate
05:35WN 1749 to Dallas leaves the gate
22 h 10 apart on the timetable, overnight
WN 1749 leaves 22 h 10 after WN 549 arrives on the timetable: more than half a day, so not a connection we count.