UA 900 then AV 2356 at San Francisco
London → San Francisco → Kailua-Kona
Timetable, San Francisco time
13:20UA 900 from London at the gatealso LX 3042, AC 5375, OS 7857, SN 9099, LH 9374, NZ 9831
08:10AV 2356 to Kailua-Kona leaves the gate
18 h 50 apart on the timetable, overnight
AV 2356 leaves 18 h 50 after UA 900 arrives on the timetable: more than half a day, so not a connection we count.