UA 1074 then UA 2127 at San Francisco
Boston → San Francisco → Los Angeles
Timetable, San Francisco time
13:34UA 1074 from Boston at the gatealso VA 8313, NZ 9021
06:00UA 2127 to Los Angeles leaves the gatealso AV 2163, NZ 9260
16 h 26 apart on the timetable, overnight
UA 2127 leaves 16 h 26 after UA 1074 arrives on the timetable: more than half a day, so not a connection we count.