AA 397 then AA 1915 at DFW
Boston → Dallas-Fort Worth → Richmond
Timetable, Dallas-Fort Worth time
10:38AA 397 from Boston at the gate
10:34AA 1915 to Richmond leaves the gate
23 h 56 apart on the timetable, overnight
AA 1915 leaves 23 h 56 after AA 397 arrives on the timetable: more than half a day, so not a connection we count.