AA 6187 then AA 1355 at DFW
Montrose → Dallas-Fort Worth → Oklahoma City
Timetable, Dallas-Fort Worth time
15:53AA 6187 from Montrose at the gate
13:11AA 1355 to Oklahoma City leaves the gate
21 h 18 apart on the timetable, overnight
AA 1355 leaves 21 h 18 after AA 6187 arrives on the timetable: more than half a day, so not a connection we count.