DL 426 then DL 4704 at Detroit
Portland (Maine) → Detroit → Washington
Timetable, Detroit time
14:53DL 426 from Portland (Maine) at the gate
21:50DL 4704 to Washington leaves the gate
6 h 57 apart on the timetable
The last days
DL 426 and DL 4704 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.