UA 1309 then AC 7070 at LAX
Chicago O'Hare → Los Angeles → Montréal
Timetable, Los Angeles time
11:29UA 1309 from Chicago O'Hare at the gate
23:35AC 7070 to Montréal leaves the gate
12 h 06 apart on the timetable
AC 7070 leaves 12 h 06 after UA 1309 arrives on the timetable: more than half a day, so not a connection we count.