WN 642 then DL 381 at San Francisco
Burbank → San Francisco → Austin
Timetable, San Francisco time
10:05WN 642 from Burbank at the gate
09:59DL 381 to Austin leaves the gate
23 h 54 apart on the timetable, overnight
DL 381 leaves 23 h 54 after WN 642 arrives on the timetable: more than half a day, so not a connection we count.