UA 2330 then UA 2279 at San Francisco
Dallas-Fort Worth → San Francisco → Seattle
Timetable, San Francisco time
21:50UA 2330 from Dallas-Fort Worth at the gatealso AC 3970, OZ 6314, VA 8276, NZ 9093
16:17UA 2279 to Seattle leaves the gatealso AZ 4506, VA 8282, NZ 9406
18 h 27 apart on the timetable, overnight
UA 2279 leaves 18 h 27 after UA 2330 arrives on the timetable: more than half a day, so not a connection we count.