UA 503 then UA 3630 at Boston
Newark → Boston → Washington
Timetable, Boston time
09:17UA 503 from Newark at the gate
19:41UA 3630 to Washington leaves the gate
10 h 24 apart on the timetable
The last days
UA 503 and UA 3630 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 Washington
No later flight to Washington on the timetable.