AA 527 then UA 1554 at San Francisco
Dallas-Fort Worth → San Francisco → San Antonio
Timetable, San Francisco time
15:10AA 527 from Dallas-Fort Worth at the gatealso BA 2496, QR 2719, QF 3273, QF 4747
12:00UA 1554 to San Antonio leaves the gatealso NZ 2373, AC 4347
20 h 50 apart on the timetable, overnight
UA 1554 leaves 20 h 50 after AA 527 arrives on the timetable: more than half a day, so not a connection we count.