AA 5556 then F9 1051 at DFW
Roanoke → Dallas-Fort Worth → Las Vegas
Timetable, Dallas-Fort Worth time
09:23AA 5556 from Roanoke at the gate
08:30F9 1051 to Las Vegas leaves the gate
23 h 07 apart on the timetable, overnight
F9 1051 leaves 23 h 07 after AA 5556 arrives on the timetable: more than half a day, so not a connection we count.