WN 562 then UA 493 at Denver
New York LaGuardia → Denver → Las Vegas
Timetable, Denver time
18:35WN 562 from New York LaGuardia at the gate
13:30UA 493 to Las Vegas leaves the gate
18 h 55 apart on the timetable, overnight
UA 493 leaves 18 h 55 after WN 562 arrives on the timetable: more than half a day, so not a connection we count.