AA 524 then UA 3752 at Dulles
Dallas-Fort Worth → Washington → Oklahoma City
Timetable, Washington time
14:18AA 524 from Dallas-Fort Worth at the gate
09:40UA 3752 to Oklahoma City leaves the gate
19 h 22 apart on the timetable, overnight
UA 3752 leaves 19 h 22 after AA 524 arrives on the timetable: more than half a day, so not a connection we count.