DL 3951 then AA 6340 at LAX
Phoenix Sky Harbor → Los Angeles → Houston
Timetable, Los Angeles time
14:29DL 3951 from Phoenix Sky Harbor at the gate
14:18AA 6340 to Houston leaves the gate
23 h 49 apart on the timetable, overnight
AA 6340 leaves 23 h 49 after DL 3951 arrives on the timetable: more than half a day, so not a connection we count.