The driving distance between Detroit, MI and Washington, DC is approximately 525 miles. The driving time would be approximately 9 hours 30 minutes if you were to travel non-stop in good driving conditions. (The driving time does not take into consideration conditions which may extend trip time such as weather, road work, border crossings and rush hour traffic in urban areas.)
4 hours
65mph the drive =4 hours 75-80mph the drive =3 hours
21
20mins
11 and 1/2 to 12 hours
2 hours
8 to 10 hours + stops
Four and a half
11 and 1/2 hours
25
How can you drive by airplane?
About 14.5 hours.