WN 1553 then AA 1123 at Boston
Denver → Boston → Philadelphia
Timetable, Boston time
16:55WN 1553 from Denver at the gate
20:50AA 1123 to Philadelphia leaves the gate
3 h 55 apart on the timetable
The last days
WN 1553 and AA 1123 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.
Later flights to Philadelphia
No later flight to Philadelphia on the timetable.