AA 6187 then AA 651 at DFW
Montrose → Dallas-Fort Worth → Mc Allen
Timetable, Dallas-Fort Worth time
15:53AA 6187 from Montrose at the gate
15:50AA 651 to Mc Allen leaves the gate
23 h 57 apart on the timetable, overnight
AA 651 leaves 23 h 57 after AA 6187 arrives on the timetable: more than half a day, so not a connection we count.