As you did not list your starting point this question is impossible to answer.
About 21 hours of driving time.
The drive from Houston, Texas to Denver, Colorado is about 1025 miles, driving time 16-17 hours.
It is 820 miles and would take about 8 1/2 hours driving time.
It requires about 15.5 hours of driving time.
how long is the driving trip from Houston Texas to flagstaff Arizona. What are good land marks to see on the way.
Google Maps estimates the driving time as 1 hour and 34 minutes.
The driving distance between Casper, WY and Houston, TX is 1386 miles. The driving time would be approximately 21 hours, 30 minutes if you were to drive non-stop in good conditions. (The driving time does not take into consideration conditions such as weather, road work and rush hour traffic in urban areas.)
MapQuest estimates the driving time as 5 hours and 38 minutes.
Google Maps estimates the driving time as 24 hours,
MapQuest estimates the driving time as 14 hours and 59 minutes.
It would take approximately 11 hours to drive from Houston to Amarillo. Give or take a few depending on how fast you drive.
The driving distance from Dallas to Houston is 239 miles. The journey takes approximately 4 hours. For a detailed map with driving directions, see the Related Link.