UA 4282 then UA 3917 at Houston
Jackson (Mississippi) → Houston → Austin
Timetable, Houston time
10:47UA 4282 from Jackson (Mississippi) at the gate
07:30UA 3917 to Austin leaves the gate
20 h 43 apart on the timetable, overnight
UA 3917 leaves 20 h 43 after UA 4282 arrives on the timetable: more than half a day, so not a connection we count.