UA 4544 then 1I 583 at Dulles
Providence → Washington → Syracuse
Timetable, Washington time
12:00UA 4544 from Providence at the gate
16:151I 583 to Syracuse leaves the gate
4 h 15 apart on the timetable
The last days
UA 4544 and 1I 583 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.