UA 900 then TN 1322 at San Francisco
London → San Francisco → Los Angeles
Timetable, San Francisco time
13:20UA 900 from London at the gatealso LX 3042, AC 5375, OS 7857, SN 9099, LH 9374, NZ 9831
10:33TN 1322 to Los Angeles leaves the gatealso BA 1740, PR 3887, AA 6270
21 h 13 apart on the timetable, overnight
TN 1322 leaves 21 h 13 after UA 900 arrives on the timetable: more than half a day, so not a connection we count.