AC 1292 then UA 3917 at Houston
Vancouver → Houston → Austin
Timetable, Houston time
14:38AC 1292 from Vancouver at the gate
07:30UA 3917 to Austin leaves the gate
16 h 52 apart on the timetable, overnight
UA 3917 leaves 16 h 52 after AC 1292 arrives on the timetable: more than half a day, so not a connection we count.