UA 1780 then OZ 6401 at San Francisco
Dallas-Fort Worth → San Francisco → Seattle
Timetable, San Francisco time
17:17UA 1780 from Dallas-Fort Worth at the gatealso AC 3148, OZ 6314
16:10OZ 6401 to Seattle leaves the gate
22 h 53 apart on the timetable, overnight
OZ 6401 leaves 22 h 53 after UA 1780 arrives on the timetable: more than half a day, so not a connection we count.