AA 6348 then UA 374 at Phoenix
Monterey → Phoenix → Washington
Timetable, Phoenix time
11:51AA 6348 from Monterey at the gate
23:59UA 374 to Washington leaves the gate
12 h 08 apart on the timetable
UA 374 leaves 12 h 08 after AA 6348 arrives on the timetable: more than half a day, so not a connection we count.