UA 1603 then AA 2904 at San Francisco
Las Vegas → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
19:03UA 1603 from Las Vegas at the gatealso AC 3072, LX 3126, AC 3335, NZ 9239
07:50AA 2904 to Dallas-Fort Worth leaves the gatealso QF 3065, G3 3750, IB 4145, GF 4309, BA 5596
12 h 47 apart on the timetable, overnight
AA 2904 leaves 12 h 47 after UA 1603 arrives on the timetable: more than half a day, so not a connection we count.