UA 5209 then UA 970 at O'Hare
Roswell → Chicago → Rome
Timetable, Chicago time
20:00UA 5209 from Roswell at the gate
15:40UA 970 to Rome leaves the gate
19 h 40 apart on the timetable, overnight
UA 970 leaves 19 h 40 after UA 5209 arrives on the timetable: more than half a day, so not a connection we count.