UA 1780 then UA 1561 at San Francisco
Dallas-Fort Worth → San Francisco → San Diego
Timetable, San Francisco time
17:18UA 1780 from Dallas-Fort Worth at the gatealso AC 3148, OZ 6314, VA 8579, NZ 9092
16:55UA 1561 to San Diego leaves the gatealso AC 4192, AZ 4504, VA 8231, LH 9202, NZ 9644
23 h 37 apart on the timetable, overnight
UA 1561 leaves 23 h 37 after UA 1780 arrives on the timetable: more than half a day, so not a connection we count.