AC 4121 then CX 7996 at San Francisco
Ontario → San Francisco → Seattle
Timetable, San Francisco time
10:55AC 4121 from Ontario at the gate
10:39CX 7996 to Seattle leaves the gate
23 h 44 apart on the timetable, overnight
CX 7996 leaves 23 h 44 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.