WN 993 then WN 389 at Denver
Baltimore → Denver → Las Vegas
Timetable, Denver time
11:45WN 993 from Baltimore at the gate
11:15WN 389 to Las Vegas leaves the gate
23 h 30 apart on the timetable, overnight
WN 389 leaves 23 h 30 after WN 993 arrives on the timetable: more than half a day, so not a connection we count.