UA 1264 then AA 1849 at San Francisco
Las Vegas → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
11:32UA 1264 from Las Vegas at the gatealso AC 3714, AZ 4443, NZ 9240, LH 9415
11:20AA 1849 to Dallas-Fort Worth leaves the gatealso QF 4499, G3 6290, GF 6536, RJ 7530
23 h 48 apart on the timetable, overnight
AA 1849 leaves 23 h 48 after UA 1264 arrives on the timetable: more than half a day, so not a connection we count.