The driving distance between Detroit, MI and Omaha, NE is approximately 745 miles. The driving time would be approximately 12 hours 15 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.)
3 days
About 30 minutes it takes to drive from Detroit to Windsor.
This is between a 35 and 40 hour drive. How long it would take depends on how long you spend driving each day.
12 hours
About 14.5 hours.
Just about two hours.
About 45 minutes.
A long time.
Google Maps estimates the driving time as 20 hours and 2 minutes.
It depends on how fast you drive. However, as an example, if you maintained an average speed of 65 mph, the time to drive the 614 miles from Detroit to Long Island NY would be about 9 hours and 26 minutes. You would have to add time for stops, detours and other delays.
Washington DC is 527 miles away from Detroit. It would take about 8 hours and 36 minutes.
It is 461.86 miles according to MapQuest.