DL 155 then AA 1776 at Boston
Dublin → Boston → Philadelphia
Timetable, Boston time
14:09DL 155 from Dublin at the gate
16:00AA 1776 to Philadelphia leaves the gate
1 h 51 apart on the timetable
The last days
DL 155 and AA 1776 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.