F9 2350 then UA 143 at Denver
Las Vegas → Denver → Tokyo
Timetable, Denver time
14:41F9 2350 from Las Vegas at the gate
11:20UA 143 to Tokyo leaves the gate
20 h 39 apart on the timetable, overnight
UA 143 leaves 20 h 39 after F9 2350 arrives on the timetable: more than half a day, so not a connection we count.