Kennewick, WA → Moab, UT

Your 720-mile journey from Kennewick, Washington to Moab, Utah will take you through some of the most striking terrain in the American West. You'll primarily follow I-90 East as it cuts through Washington and into Idaho, then transition to I-84 East toward the Utah border, where you'll pick up US-191 South for the final push into Moab. This route spans approximately 14 hours and 24 minutes of driving time, making it ideal as a two-day adventure with an overnight stop, though experienced drivers can complete it in one long stretch. The highways are generally well-maintained and straightforward, with clear signage guiding you through the transitions between major routes.

As you leave the relatively flat Tri-Cities area of Kennewick, you'll quickly climb into the Blue Mountains of northeastern Oregon, where the landscape transforms dramatically. The terrain undulates considerably as you pass through Pendleton and Baker City, with elevations ranging from around 2,000 feet to over 5,000 feet at the mountain passes. Beyond Oregon, you'll descend into the high desert of western Utah, where the terrain begins to open up and the iconic red-rock country gradually comes into view. The final 150 miles or so involve steady elevation gain as you approach Moab, with the landscape becoming increasingly dramatic as the Colorado River canyons and canyon walls emerge from the plateau.

You'll pass through or near several notable communities along this route, including Pendleton and Baker City in Oregon, and then cross into Utah where smaller towns like Richfield and Green River serve as good rest stops. The drive offers a fascinating geological progression—from the forested mountain passes of Oregon to the high-desert plateau country that defines eastern Utah. The elevation change is significant overall, climbing from roughly 350 feet in Kennewick to nearly 4,000 feet in Moab, so pay attention to engine performance and braking, especially on the downhill sections through Oregon.

The best time to make this drive is late spring through early fall, when mountain passes are clear and desert conditions are moderate. Winter can bring hazardous conditions through the Oregon mountains, while summer heat in the Utah desert section can be intense, so plan accordingly with plenty of water and fuel stops in the more remote stretches.

The 720-mile drive from Kennewick, Washington to Moab, Utah takes approximately 14h 23m under normal conditions. Weather along this route can vary significantly, especially through mountainous terrain where elevation changes can bring sudden weather shifts. Route Outlook helps you find the safest time to travel by showing you weather conditions at every point along your route, timed to when you'll actually be there.

Common Weather Hazards on This Route

• Winter storms and heavy snowfall (November through April)
• Black ice on mountain passes and bridges
• Dense fog, especially during early morning hours
• Extreme heat and dust storms in desert regions
• Flash floods during monsoon season (July through September)

Seasonal Driving Considerations

Mountain passes along this corridor can be treacherous from October through May, with chain requirements, road closures, and whiteout conditions at higher elevations. Summer brings its own challenges — afternoon thunderstorms are common above 7,000 feet, and construction season narrows lanes on key highways. Always check pass conditions before departing, and carry emergency supplies during the colder months.

Best Time to Drive Kennewick to Moab

For long drives like this 720-mile journey, planning is essential. Consider breaking the trip into segments if weather looks challenging. The best approach is to check conditions for multiple departure times using Route Outlook's optimizer, which considers weather at each point when you'll actually be there.

Driving Strategy

Covering 720 miles from Kennewick to Moab is a full-day or multi-day drive that requires advance planning. Break the route into manageable segments, planning fuel and rest stops every 2-3 hours. Weather that looks fine at departure may deteriorate significantly at the midpoint. Consider booking overnight accommodation if the forecast shows deteriorating conditions in the latter half. Route Outlook's segment-level weather data helps you identify exactly where and when conditions will change.

Frequently Asked Questions