UA 3926 then AA 1837 at San Francisco
Newark → San Francisco → Phoenix
Timetable, San Francisco time
22:56UA 3926 from Newark at the gate
16:00AA 1837 to Phoenix leaves the gatealso FJ 5035, BA 6942, QR 9224
17 h 04 apart on the timetable, overnight
AA 1837 leaves 17 h 04 after UA 3926 arrives on the timetable: more than half a day, so not a connection we count.