F9 4559 then AA 3816 at DFW
Washington → Dallas-Fort Worth → Columbia Metropolitan
Timetable, Dallas-Fort Worth time
15:11F9 4559 from Washington at the gate
13:15AA 3816 to Columbia Metropolitan leaves the gate
22 h 04 apart on the timetable, overnight
AA 3816 leaves 22 h 04 after F9 4559 arrives on the timetable: more than half a day, so not a connection we count.