B6 178 then DL 2066 at Boston
Las Vegas → Boston → Raleigh-Durham
Timetable, Boston time
07:54B6 178 from Las Vegas at the gate
06:20DL 2066 to Raleigh-Durham leaves the gate
22 h 26 apart on the timetable, overnight
DL 2066 leaves 22 h 26 after B6 178 arrives on the timetable: more than half a day, so not a connection we count.