AA 9923 then CX 3280 at LAX
Tucson → Los Angeles → Portland (Oregon)
Timetable, Los Angeles time
13:02AA 9923 from Tucson at the gate
09:00CX 3280 to Portland (Oregon) leaves the gate
19 h 58 apart on the timetable, overnight
CX 3280 leaves 19 h 58 after AA 9923 arrives on the timetable: more than half a day, so not a connection we count.