AA 2405 then F9 1051 at DFW
Buffalo → Dallas-Fort Worth → Las Vegas
Timetable, Dallas-Fort Worth time
09:55AA 2405 from Buffalo at the gate
08:30F9 1051 to Las Vegas leaves the gate
22 h 35 apart on the timetable, overnight
F9 1051 leaves 22 h 35 after AA 2405 arrives on the timetable: more than half a day, so not a connection we count.