DL 5218 then AA 4481 at Atlanta
Tallahassee → Atlanta → New York LaGuardia
Timetable, Atlanta time
13:13DL 5218 from Tallahassee at the gate
19:28AA 4481 to New York LaGuardia leaves the gate
6 h 15 apart on the timetable
The last days
DL 5218 and AA 4481 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.