AA 6491 then AA 2121 at Phoenix
Grand Junction → Phoenix → Reno
Timetable, Phoenix time
13:50AA 6491 from Grand Junction at the gate
08:16AA 2121 to Reno leaves the gate
18 h 26 apart on the timetable, overnight
AA 2121 leaves 18 h 26 after AA 6491 arrives on the timetable: more than half a day, so not a connection we count.