UA 2102 then OO 6105 at O'Hare
Las Vegas → Chicago → YIP
Timetable, Chicago time
05:30UA 2102 from Las Vegas at the gate
18:50OO 6105 to YIP leaves the gate
13 h 20 apart on the timetable
OO 6105 leaves 13 h 20 after UA 2102 arrives on the timetable: more than half a day, so not a connection we count.