Kanab is a 3 hour drive from Las Vegas, NV, a 4 1/2 hour drive from Salt Lake City, UT, and a 5 1/2 hour drive from Phoenix, AZ. No matter which way you're coming from, you will see some amazing country en route.
FROM LAS VEGAS: You will traverse the Mojave Desert and transition to the Great Basin and Colorado Plateau, with views of Zion National Park and the Mt. Caanan Wilderness Area, and the Kaibab Paiute Reservation.
FROM SALT LAKE CITY: You will drive down the scenic Hwy 89 with views of the Paunsugaunt Plateau (home to Bryce Canyon National Park) and through the towering white sandstone cliffs just east of Zion National Park.
FROM PHOENIX: You will drive through Flagstaff and continue north, paralleling the South Rim of the Grand Canyon and through Navajo land. You'll have two amazing options that are equally breathtaking and similar in distance/time from Kanab. If you take Hwy 89A, you'll cross the Colorado River via Navajo Bridge near Lee's Ferry, then drive along the stunning Vermillion Cliffs National Monument before climbing up onto the famous Kaibab Plateau and then descending down into Kanab with perhaps the most expansive views of the entire Grand Staircase, including Zion and Bryce. We highly recommend this route. The other option is to take Hwy 89 through Page, AZ (Make sure to get out and hike out to see Horseshoe Bend of the Colorado River while you're there). You'll drive across Glen Canyon right below the dam with views of Lake Powell before heading west with views of the Grand Staircase-Escalante National Monument to the north and Vermillion Cliffs National Monument to the south.