WN 1808 then WN 643 at Denver
St Louis → Denver → Orlando
Timetable, Denver time
13:55WN 1808 from St Louis at the gate
13:25WN 643 to Orlando leaves the gate
23 h 30 apart on the timetable, overnight
WN 643 leaves 23 h 30 after WN 1808 arrives on the timetable: more than half a day, so not a connection we count.