AA 3810 then AA 3215 at DFW
Monterrey → Dallas-Fort Worth → Kansas City
Timetable, Dallas-Fort Worth time
09:55AA 3810 from Monterrey at the gate
22:00AA 3215 to Kansas City leaves the gate
12 h 05 apart on the timetable
AA 3215 leaves 12 h 05 after AA 3810 arrives on the timetable: more than half a day, so not a connection we count.