UA 367 then WS 8476 at San Francisco
Washington → San Francisco → Detroit
Timetable, San Francisco time
01:29UA 367 from Washington at the gatealso LH 7530, VA 8388, NZ 9181
23:20WS 8476 to Detroit leaves the gate
21 h 51 apart on the timetable
WS 8476 leaves 21 h 51 after UA 367 arrives on the timetable: more than half a day, so not a connection we count.