AA 1561 then AA 3898 at DFW
Grand Rapids → Dallas-Fort Worth → Brownsville
Timetable, Dallas-Fort Worth time
08:35AA 1561 from Grand Rapids at the gate
21:20AA 3898 to Brownsville leaves the gate
12 h 45 apart on the timetable
AA 3898 leaves 12 h 45 after AA 1561 arrives on the timetable: more than half a day, so not a connection we count.