Flight Keflavík International Airport departs from Reykjavik Keflavík International Airport at 16:55 and arrives at Detroit Metropolitan Wayne County Airport at 19:20.
The flighttime is about 7h 25m. The distance travelled ("as the bird flies"): 6810 Km. So the average speed is roughly 918 Km.
There is an 5 hour time difference between Reykjavik and Detroit