AA 4210 then AA 3589 at DFW
Savannah → Dallas-Fort Worth → Laredo
Timetable, Dallas-Fort Worth time
21:38AA 4210 from Savannah at the gate
21:30AA 3589 to Laredo leaves the gate
23 h 52 apart on the timetable, overnight
AA 3589 leaves 23 h 52 after AA 4210 arrives on the timetable: more than half a day, so not a connection we count.