AS 240 then CX 3171 at Houston
Seattle → Houston → Anchorage
Timetable, Houston time
23:59AS 240 from Seattle at the gate
17:00CX 3171 to Anchorage leaves the gate
17 h 01 apart on the timetable, overnight
CX 3171 leaves 17 h 01 after AS 240 arrives on the timetable: more than half a day, so not a connection we count.