UA 1970 then WN 3840 at San Francisco
Cleveland → San Francisco → Burbank
Timetable, San Francisco time
21:45UA 1970 from Cleveland at the gatealso VA 8489, NZ 9046, OZ 9526
19:00WN 3840 to Burbank leaves the gate
21 h 15 apart on the timetable, overnight
WN 3840 leaves 21 h 15 after UA 1970 arrives on the timetable: more than half a day, so not a connection we count.