Phoenix to St. George Road Trip: Best Stops & Hidden Gems

Phoenix sits at 1,086 feet above sea level, while St. George rises to 2,860 feet—a gradual climb that transitions from Sonoran Desert to Colorado Plateau. On Interstate 17 north, the road crosses the edge of the Mogollon Rim, a dramatic escarpment formed by ancient volcanic activity. The route totals about 380 miles and typically takes 5.5 to 6.5 hours without stops, making it ideal for a multi-stop road trip. For more on finding unique stops, see how to find the best stops and hidden gems between cities.

The primary route is I-17 north from Phoenix to Flagstaff, then US-89 Alt and US-89 north to St. George. Roads are well-maintained with multiple gas stations along the corridor. Fuel prices typically drop in Flagstaff and rise in remote areas like Cameron and Page. Plan refueling at major towns: Phoenix, Flagstaff, Page, and St. George. The drive is scenic but remote north of Flagstaff; carry water and snacks.

• Gas stations: plentiful in Phoenix and Flagstaff; sparse between Flagstaff and St. George (Cameron, Page, Kanab).
• Food stops: chain restaurants in Flagstaff, local diners in Page and Kanab.
• Restrooms: available at major gas stations and state parks.

Road quality is excellent on interstates; US-89 between Page and St. George can have narrow shoulders. Summer temperatures exceed 100°F in Phoenix and St. George; carry extra water. Wildlife (deer, elk) near Flagstaff at dusk. Cell coverage is spotty north of Flagstaff.

• Family Stops: Arizona Snowbowl (summer chairlift), Bearizona Wildlife Park, Navajo Bridges.
• Pet-Friendly: Leashed pets welcome at outdoor attractions; rest stops along I-17 have pet areas. Many hotels in Flagstaff and St. George are pet-friendly.
• Fatigue Management: Plan breaks every 2 hours or 150 miles. Rest areas near Camp Verde (mile 287), Flagstaff (mile 340), Page (mile 540), and Kanab (mile 600).

For a curated list of things to do between Phoenix, AZ and St. George, UT, explore our route guide. Is it worth driving? Absolutely—the diversity of landscapes and the allure of red rock country make it a top American road trip.

The drive traverses four distinct ecosystems: Sonoran Desert (saguaro cacti), high desert (juniper and pines), Colorado Plateau (red rock canyons), and Great Basin desert. South of Flagstaff, the landscape is arid with creosote and cholla. Near Flagstaff, the San Francisco Peaks dominate the skyline. As you descend toward St. George, the red cliffs of Snow Canyon and Zion National Park become visible.

• Natural Attractions: Montezuma Castle National Monument, Sunset Crater, Grand Canyon (South Rim), Horseshoe Bend, Zion National Park.
• Hidden Gems: Walnut Canyon National Monument (off I-40), Pipe Spring National Monument (off US-89), Coral Pink Sand Dunes State Park.
• Local Commerce: Flagstaff's historic downtown, Page's souvenir shops, St. George's art galleries.

UNESCO World Heritage Sites near this route include Grand Canyon National Park (south rim detour) and the Pueblo de los Muertos (off-route). For a deep list of attractions, see our guide on best stops Phoenix, AZ to St. George, UT.