LA 6139 then UA 233 at San Francisco
Boston → San Francisco → Indianapolis
Timetable, San Francisco time
23:58LA 6139 from Boston at the gate
22:53UA 233 to Indianapolis leaves the gatealso NZ 2731, VA 8345
22 h 55 apart on the timetable, overnight
UA 233 leaves 22 h 55 after LA 6139 arrives on the timetable: more than half a day, so not a connection we count.