AV 2183 then UA 3915 at San Francisco
Vancouver → San Francisco → Houston
Timetable, San Francisco time
15:27AV 2183 from Vancouver at the gate
13:30UA 3915 to Houston leaves the gate
22 h 03 apart on the timetable, overnight
UA 3915 leaves 22 h 03 after AV 2183 arrives on the timetable: more than half a day, so not a connection we count.