F9 1404 then DL 4644 at Atlanta
Houston → Atlanta → Moline
Timetable, Atlanta time
09:24F9 1404 from Houston at the gate
09:11DL 4644 to Moline leaves the gate
23 h 47 apart on the timetable, overnight
DL 4644 leaves 23 h 47 after F9 1404 arrives on the timetable: more than half a day, so not a connection we count.