CX 75 then UA 450 at Toronto Pearson
New York JFK → Toronto → Chicago O'Hare
Timetable, Toronto time
22:04CX 75 from New York JFK at the gate
10:53UA 450 to Chicago O'Hare leaves the gate
12 h 49 apart on the timetable, overnight
UA 450 leaves 12 h 49 after CX 75 arrives on the timetable: more than half a day, so not a connection we count.