Flight Keflavík International Airport departs from Reykjavik Keflavík International Airport at 19:50 and arrives at New York John F Kennedy International Airport at 22:10.
The flighttime is about 7h 20m. The distance travelled ("as the bird flies"): 5861 Km. So the average speed is roughly 799 Km.
There is an 5 hour time difference between Reykjavik and New York