UA 699 then UA 3917 at Houston
Fort Lauderdale → Houston → Austin
Timetable, Houston time
13:10UA 699 from Fort Lauderdale at the gate
07:30UA 3917 to Austin leaves the gate
18 h 20 apart on the timetable, overnight
UA 3917 leaves 18 h 20 after UA 699 arrives on the timetable: more than half a day, so not a connection we count.