Flight International Airport departs from Calgary International Airport at 07:05 and arrives at Houston George Bush Intercontinental Airport at 16:55.The flight has a short stop at San Francisco.
The flighttime is about 8h 50m. The distance travelled ("as the bird flies"): 2127 Km. So the average speed is roughly 241 Km.
There is an 1 hour time difference between Calgary and Houston