UA 4734 then SQ 1491 at San Francisco
Eugene → San Francisco → New York JFK
Timetable, San Francisco time
13:16UA 4734 from Eugene at the gatealso EK 6064, LH 8741
06:00SQ 1491 to New York JFK leaves the gate
16 h 44 apart on the timetable, overnight
SQ 1491 leaves 16 h 44 after UA 4734 arrives on the timetable: more than half a day, so not a connection we count.