UA 6013 then DL 2709 at Houston
Grand Rapids → Houston → Atlanta
Timetable, Houston time
08:35UA 6013 from Grand Rapids at the gate
08:05DL 2709 to Atlanta leaves the gate
23 h 30 apart on the timetable, overnight
DL 2709 leaves 23 h 30 after UA 6013 arrives on the timetable: more than half a day, so not a connection we count.