Seattle, WA → Spokane, WA

Your journey from Seattle to Spokane covers roughly 297 miles across Washington State, primarily along Interstate 90, which is the most direct and heavily traveled route across the state. You'll head east from Seattle, passing through the suburban sprawl of the greater metropolitan area before the landscape begins to open up. The highway is well-maintained throughout, though you should expect moderate to heavy traffic during rush hours if you're departing from or passing through the Seattle area during peak times. From start to finish, you're looking at approximately five hours of driving, making this a manageable day trip or the starting leg of a longer journey eastward.

As you progress eastward on I-90, you'll experience a dramatic transition in Washington's geography and climate. Leaving the Puget Sound region's evergreen forests, you'll climb through the Cascade Mountain Range, with elevations rising to roughly 2,150 feet at Snoqualmie Pass. The pass itself can be challenging during winter months due to snow and ice, so chain requirements may apply from November through March. Once you crest the Cascades, the landscape transforms from lush green valleys to the drier, semi-arid terrain of central Washington, a stark and striking change that happens within just a couple of hours of driving.

Along the way, you'll pass through several notable towns that offer good opportunities for breaks, meals, and fuel. North Bend and Snoqualmie provide services near the mountain pass, while Ellensburg sits roughly halfway through your journey and serves as a good stopping point. As you continue eastward, you'll drive past the Colville National Forest and through the Spokane River valley before arriving in Spokane, Washington's second-largest city and a vibrant hub of eastern Washington culture and commerce.

Spring through early fall offers the most pleasant driving conditions on this route, with clear skies and reliable visibility. Winter can transform the Cascade crossing into a slower, more treacherous drive, potentially adding hours to your journey. Regardless of season, this drive showcases Washington's remarkable geographic diversity and remains one of the state's most important transportation corridors connecting its two major metropolitan regions.

The 297-mile drive from Seattle, Washington to Spokane, Washington takes approximately 4h 58m 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

• Dense fog, especially during early morning hours

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 Seattle to Spokane

For medium-distance drives like this 297-mile route, consider starting in the early morning to arrive before afternoon storms develop. Check the 7-day forecast above to find a day with favorable conditions along the entire route.

Driving Strategy

A 297-mile drive from Seattle to Spokane takes a significant part of the day. Plan at least one fuel and rest stop along the way. If your route crosses elevation changes or state lines, expect weather conditions to shift mid-trip. Monitor the segment-by-segment forecast rather than just checking destination weather. Starting early in the morning typically avoids afternoon storm development and rush-hour congestion near urban areas.

Frequently Asked Questions