AA 3977 then DL 5477 at Detroit
Chicago O'Hare → Detroit → Harrisburg
Timetable, Detroit time
13:00AA 3977 from Chicago O'Hare at the gate
21:40DL 5477 to Harrisburg leaves the gate
8 h 40 apart on the timetable
The last days
AA 3977 and DL 5477 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 Harrisburg
No later flight to Harrisburg on the timetable.