DL 523 then UA 2210 at LAX
Detroit → Los Angeles → Boston
Timetable, Los Angeles time
10:28DL 523 from Detroit at the gate
22:45UA 2210 to Boston leaves the gate
12 h 17 apart on the timetable
UA 2210 leaves 12 h 17 after DL 523 arrives on the timetable: more than half a day, so not a connection we count.