UA 1089 then UA 4307 at Houston
Mexico City → Houston → Northwest Arkansas
Timetable, Houston time
12:22UA 1089 from Mexico City at the gate
09:35UA 4307 to Northwest Arkansas leaves the gate
21 h 13 apart on the timetable, overnight
UA 4307 leaves 21 h 13 after UA 1089 arrives on the timetable: more than half a day, so not a connection we count.