BA 8383 then UA 1007 at San Francisco
New York JFK → San Francisco → Seattle
Timetable, San Francisco time
22:42BA 8383 from New York JFK at the gate
21:05UA 1007 to Seattle leaves the gatealso CM 2320, LX 3347, VA 8286, NZ 9408
22 h 23 apart on the timetable, overnight
UA 1007 leaves 22 h 23 after BA 8383 arrives on the timetable: more than half a day, so not a connection we count.