Moab, UT → Seattle, WA

The 1,164-mile journey from Moab, Utah to Seattle, Washington is a spectacular highway adventure that takes you through the heart of the American West and into the Pacific Northwest. You'll primarily follow Interstate 70 north out of Moab through the high desert landscape of Utah before connecting to I-15 near the town of Green River. From there, the route carries you through some of the most dramatic terrain in the country as you head northwest through Idaho on I-84 and I-90, eventually arriving in Washington state where you'll take I-90 straight into Seattle. While the entire drive covers roughly 1,164 miles and takes approximately 19 and a half hours of pure driving time, most travelers choose to break this journey into two or three days to fully appreciate the scenery and avoid fatigue.

As you leave the red rock country around Moab, you'll experience one of the most significant elevation transitions on this route, climbing from around 4,000 feet to over 10,000 feet as you traverse the Utah highlands. The landscape transforms dramatically as you push northward—the arid desert gradually gives way to evergreen forests, alpine meadows, and eventually the lush, verdant valleys of the Pacific Northwest. You'll pass through notable cities including Salt Lake City, where I-15 and I-80 intersect, and then continue through the scenic mountain passes of Idaho before entering Washington near Spokane. The final stretch into Seattle on I-90 descends through the Cascades, offering increasingly dramatic views of forested hillsides and mountain vistas.

The optimal time to tackle this drive is late spring through early fall, when mountain passes are reliably clear and weather conditions are most stable. While this route is absolutely drivable in winter, the higher elevations of Utah and Idaho can present snow and ice challenges, particularly on I-80 near Salt Lake City and the Blue Mountains of Oregon. Summer heat in the Utah and Idaho portions requires attention to your vehicle's cooling system, while autumn offers perhaps the most pleasant driving conditions with comfortable temperatures and clear skies. Plan for fuel stops in smaller towns between Salt Lake City and Spokane, as stretches can be lengthy and remote, and always ensure your vehicle is well-maintained before attempting this elevation-intensive cross-country drive.

The 1164-mile drive from Moab, Utah to Seattle, Washington takes approximately 19h 30m 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 Moab to Seattle

For long drives like this 1164-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 1164 miles from Moab to Seattle 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