DL 873 then F9 3052 at DFW
New York LaGuardia → Dallas-Fort Worth → Nashville
Timetable, Dallas-Fort Worth time
20:23DL 873 from New York LaGuardia at the gate
15:22F9 3052 to Nashville leaves the gate
18 h 59 apart on the timetable, overnight
F9 3052 leaves 18 h 59 after DL 873 arrives on the timetable: more than half a day, so not a connection we count.