AC 8637 then TS 938 at Montréal
New York LaGuardia → Montréal → Cancún
Timetable, Montréal time
14:36AC 8637 from New York LaGuardia at the gate
14:30TS 938 to Cancún leaves the gate
23 h 54 apart on the timetable, overnight
TS 938 leaves 23 h 54 after AC 8637 arrives on the timetable: more than half a day, so not a connection we count.