UA 1970 then G3 6028 at San Francisco
Cleveland → San Francisco → New York JFK
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
13:30G3 6028 to New York JFK leaves the gate
15 h 45 apart on the timetable, overnight
G3 6028 leaves 15 h 45 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.