UA 1031 then UA 545 at San Francisco
Cleveland → San Francisco → Austin
Timetable, San Francisco time
11:00UA 1031 from Cleveland at the gatealso VA 8488, NZ 9045
08:40UA 545 to Austin leaves the gatealso AC 5289, VA 8467
21 h 40 apart on the timetable, overnight
UA 545 leaves 21 h 40 after UA 1031 arrives on the timetable: more than half a day, so not a connection we count.