UA 574 then AA 3899 at Phoenix
Boston → Phoenix → Santa Rosa
Timetable, Phoenix time
19:31UA 574 from Boston at the gate
18:10AA 3899 to Santa Rosa leaves the gate
22 h 39 apart on the timetable, overnight
AA 3899 leaves 22 h 39 after UA 574 arrives on the timetable: more than half a day, so not a connection we count.