UA 521 then UA 3235 at Houston
Atlanta → Houston → Little Rock
Timetable, Houston time
17:21UA 521 from Atlanta at the gate
07:15UA 3235 to Little Rock leaves the gate
13 h 54 apart on the timetable, overnight
UA 3235 leaves 13 h 54 after UA 521 arrives on the timetable: more than half a day, so not a connection we count.