DL 1287 then CX 3171 at Houston
Los Angeles → Houston → Anchorage
Timetable, Houston time
23:50DL 1287 from Los Angeles at the gate
17:58CX 3171 to Anchorage leaves the gate
18 h 08 apart on the timetable, overnight
CX 3171 leaves 18 h 08 after DL 1287 arrives on the timetable: more than half a day, so not a connection we count.