UA 3901 then UA 4307 at Houston
Phoenix → Houston → Northwest Arkansas
Timetable, Houston time
09:39UA 3901 from Phoenix at the gate
09:35UA 4307 to Northwest Arkansas leaves the gate
23 h 56 apart on the timetable, overnight
UA 4307 leaves 23 h 56 after UA 3901 arrives on the timetable: more than half a day, so not a connection we count.