UA 5193 then AA 2279 at O'Hare
Clarksburg → Chicago → San Juan
Timetable, Chicago time
16:00UA 5193 from Clarksburg at the gate
08:05AA 2279 to San Juan leaves the gate
16 h 05 apart on the timetable, overnight
AA 2279 leaves 16 h 05 after UA 5193 arrives on the timetable: more than half a day, so not a connection we count.