UA 5664 then UA 4307 at Houston
Amarillo → Houston → Northwest Arkansas
Timetable, Houston time
11:03UA 5664 from Amarillo at the gate
09:35UA 4307 to Northwest Arkansas leaves the gate
22 h 32 apart on the timetable, overnight
UA 4307 leaves 22 h 32 after UA 5664 arrives on the timetable: more than half a day, so not a connection we count.