UA 1970 then AS 3494 at San Francisco
Cleveland → San Francisco → Santa Ana
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
14:04AS 3494 to Santa Ana leaves the gatealso JL 5459, AA 9298
16 h 19 apart on the timetable, overnight
AS 3494 leaves 16 h 19 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.