AC 3947 then UA 545 at San Francisco
Phoenix → San Francisco → Austin
Timetable, San Francisco time
09:12AC 3947 from Phoenix at the gatealso CA 7301, NH 7307
08:40UA 545 to Austin leaves the gatealso AC 5289, VA 8467
23 h 28 apart on the timetable, overnight
UA 545 leaves 23 h 28 after AC 3947 arrives on the timetable: more than half a day, so not a connection we count.