DL 932 then UA 516 at Atlanta
San Diego → Atlanta → Chicago O'Hare
Timetable, Atlanta time
20:07DL 932 from San Diego at the gate
15:32UA 516 to Chicago O'Hare leaves the gate
19 h 25 apart on the timetable, overnight
UA 516 leaves 19 h 25 after DL 932 arrives on the timetable: more than half a day, so not a connection we count.