AV 2351 then OZ 6401 at San Francisco
Denver → San Francisco → Seattle
Timetable, San Francisco time
19:11AV 2351 from Denver at the gate
16:17OZ 6401 to Seattle leaves the gate
21 h 06 apart on the timetable, overnight
OZ 6401 leaves 21 h 06 after AV 2351 arrives on the timetable: more than half a day, so not a connection we count.