AA 644 then AA 1666 at Phoenix
Tampa → Phoenix → Ontario
Timetable, Phoenix time
20:50AA 644 from Tampa at the gate
18:48AA 1666 to Ontario leaves the gate
21 h 58 apart on the timetable, overnight
AA 1666 leaves 21 h 58 after AA 644 arrives on the timetable: more than half a day, so not a connection we count.