UA 2744 then UA 545 at San Francisco
Houston → San Francisco → Austin
Timetable, San Francisco time
10:46UA 2744 from Houston at the gate
08:40UA 545 to Austin leaves the gatealso AC 5289, VA 8467
21 h 54 apart on the timetable, overnight
UA 545 leaves 21 h 54 after UA 2744 arrives on the timetable: more than half a day, so not a connection we count.