F9 3227 then WN 406 at Denver
Houston → Denver → Las Vegas
Timetable, Denver time
12:20F9 3227 from Houston at the gate
12:05WN 406 to Las Vegas leaves the gate
23 h 45 apart on the timetable, overnight
WN 406 leaves 23 h 45 after F9 3227 arrives on the timetable: more than half a day, so not a connection we count.