The drive from Cedar City to Twin Falls covers approximately 400 miles, primarily following I-15 North to I-84 West. This route takes you through the scenic landscapes of Utah and Idaho. You should budget 6 hours of driving time. It is a major interstate route, making it well-serviced with gas stations and rest areas.
Total Distance: 645 km driving distance; 450 km straight-line air distance.
Plan for a stop in Pocatello to break up the drive.
May through September for the best weather in Idaho.