UA 1840 then TP 244 at O'Hare
Miami → Chicago → Lisbon
Timetable, Chicago time
19:30UA 1840 from Miami at the gate
19:00TP 244 to Lisbon leaves the gate
23 h 30 apart on the timetable, overnight
TP 244 leaves 23 h 30 after UA 1840 arrives on the timetable: more than half a day, so not a connection we count.