The drive from Longmont to Billings is approximately 500 miles. You will head north through Wyoming and into Montana. The drive takes about 8 hours. You will pass through beautiful mountain scenery and vast plains. This route is perfect for those who enjoy nature and outdoor activities.
Total Distance: 805 km driving distance, 650 km straight-line air distance.
The drive through the Rockies is beautiful but requires careful driving.
Summer or early fall to avoid winter snow in the mountains.