UA 4564 then UA 3917 at Houston
Lafayette → Houston → Austin
Timetable, Houston time
13:29UA 4564 from Lafayette at the gate
07:30UA 3917 to Austin leaves the gate
18 h 01 apart on the timetable, overnight
UA 3917 leaves 18 h 01 after UA 4564 arrives on the timetable: more than half a day, so not a connection we count.