WN 4259 then OZ 6315 at San Francisco
San Diego → San Francisco → Washington
Timetable, San Francisco time
19:10WN 4259 from San Diego at the gate
16:52OZ 6315 to Washington leaves the gate
21 h 42 apart on the timetable, overnight
OZ 6315 leaves 21 h 42 after WN 4259 arrives on the timetable: more than half a day, so not a connection we count.