UA 4746 then UA 4307 at Houston
Nashville → Houston → Northwest Arkansas
Timetable, Houston time
11:02UA 4746 from Nashville at the gate
09:35UA 4307 to Northwest Arkansas leaves the gate
22 h 33 apart on the timetable, overnight
UA 4307 leaves 22 h 33 after UA 4746 arrives on the timetable: more than half a day, so not a connection we count.