UA 2745 then WN 643 at Denver
Grand Rapids → Denver → Orlando
Timetable, Denver time
16:45UA 2745 from Grand Rapids at the gate
13:25WN 643 to Orlando leaves the gate
20 h 40 apart on the timetable, overnight
WN 643 leaves 20 h 40 after UA 2745 arrives on the timetable: more than half a day, so not a connection we count.