Flight Raleigh Durham International Airport departs from Raleigh Durham Raleigh Durham International Airport at 16:20 and arrives at Denver International Airport at 18:08.
The flighttime is about 3h 48m. The distance travelled ("as the bird flies"): 2876 Km. So the average speed is roughly 757 Km.
There is an 2 hour time difference between Raleigh Durham and Denver