UA 3926 then AA 491 at San Francisco
Newark → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
22:56UA 3926 from Newark at the gate
17:01AA 491 to Dallas-Fort Worth leaves the gatealso QR 2259, QF 3120, BA 6540
18 h 05 apart on the timetable, overnight
AA 491 leaves 18 h 05 after UA 3926 arrives on the timetable: more than half a day, so not a connection we count.