MS 947 then UA 3876 at O'Hare
Cairo → Chicago → Miami
Timetable, Chicago time
05:15MS 947 from Cairo at the gate
21:00UA 3876 to Miami leaves the gate
15 h 45 apart on the timetable
UA 3876 leaves 15 h 45 after MS 947 arrives on the timetable: more than half a day, so not a connection we count.