WN 3348 then AA 4478 at Atlanta
Phoenix → Atlanta → New York LaGuardia
Timetable, Atlanta time
06:30WN 3348 from Phoenix at the gate
12:36AA 4478 to New York LaGuardia leaves the gate
6 h 06 apart on the timetable
The last days
WN 3348 and AA 4478 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.