UA 1383 then UA 3907 at Houston
Raleigh-Durham → Houston → Washington
Timetable, Houston time
08:13UA 1383 from Raleigh-Durham at the gate
07:00UA 3907 to Washington leaves the gate
22 h 47 apart on the timetable, overnight
UA 3907 leaves 22 h 47 after UA 1383 arrives on the timetable: more than half a day, so not a connection we count.