UA 3501 then AS 9802 at O'Hare
Kansas City → Chicago → San Diego
Timetable, Chicago time
17:05UA 3501 from Kansas City at the gate
13:30AS 9802 to San Diego leaves the gate
20 h 25 apart on the timetable, overnight
AS 9802 leaves 20 h 25 after UA 3501 arrives on the timetable: more than half a day, so not a connection we count.