UA 3919 then UA 4062 at Houston
Raleigh-Durham → Houston → Northwest Arkansas
Timetable, Houston time
23:15UA 3919 from Raleigh-Durham at the gate
15:30UA 4062 to Northwest Arkansas leaves the gate
16 h 15 apart on the timetable, overnight
UA 4062 leaves 16 h 15 after UA 3919 arrives on the timetable: more than half a day, so not a connection we count.