DL 1223 then DL 423 at Atlanta
Cincinnati → Atlanta → Salt Lake City
Timetable, Atlanta time
16:33DL 1223 from Cincinnati at the gate
13:55DL 423 to Salt Lake City leaves the gate
21 h 22 apart on the timetable, overnight
DL 423 leaves 21 h 22 after DL 1223 arrives on the timetable: more than half a day, so not a connection we count.