AA 6187 then AA 6238 at DFW
Montrose → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
15:53AA 6187 from Montrose at the gate
08:25AA 6238 to Amarillo leaves the gate
16 h 32 apart on the timetable, overnight
AA 6238 leaves 16 h 32 after AA 6187 arrives on the timetable: more than half a day, so not a connection we count.