Road trips are a great American pastime! Here is the best route between Salt Lake City and Phoenix:
Take I-15 S to Route 20
Cross east over to Route 89
Head south to Kanab
Head east to Page
Go south to Flagstaff and on to Phoenix
The whole trip will take you approximately 10 hours and span around 660 miles.
Fortunately, you can make minor detours to visit some great stops along the way—especially if you’re able to take your time! Some amazing, easy-to-access destinations include Grand Canyon National Park, Bryce Canyon National Park, and Kanab.