UA 229 then AA 2414 at Dulles
Dublin → Washington → Dallas-Fort Worth
Timetable, Washington time
15:20UA 229 from Dublin at the gate
14:42AA 2414 to Dallas-Fort Worth leaves the gate
23 h 22 apart on the timetable, overnight
AA 2414 leaves 23 h 22 after UA 229 arrives on the timetable: more than half a day, so not a connection we count.