DL 2754 then DL 2745 at Atlanta
Tulsa → Atlanta → Valparaiso
Timetable, Atlanta time
13:02DL 2754 from Tulsa at the gate
02:32DL 2745 to Valparaiso leaves the gate
13 h 30 apart on the timetable, overnight
DL 2745 leaves 13 h 30 after DL 2754 arrives on the timetable: more than half a day, so not a connection we count.