AA 4277 then AA 6238 at DFW
Rapid City → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
09:29AA 4277 from Rapid City at the gate
08:25AA 6238 to Amarillo leaves the gate
22 h 56 apart on the timetable, overnight
AA 6238 leaves 22 h 56 after AA 4277 arrives on the timetable: more than half a day, so not a connection we count.