AA 3735 then AA 1550 at DFW
College Station → Dallas-Fort Worth → Washington National
Timetable, Dallas-Fort Worth time
21:23AA 3735 from College Station at the gate
10:25AA 1550 to Washington National leaves the gate
13 h 02 apart on the timetable, overnight
AA 1550 leaves 13 h 02 after AA 3735 arrives on the timetable: more than half a day, so not a connection we count.