Boulder to Mount Rainier: Road Trip Guide & Distance

How far is Boulder from Mount Rainier?

The distance from Boulder to Mount Rainier is 950 miles (1528.8 km) as the crow flies. Mount Rainier is located NW of Boulder. By car, the driving distance is approximately 1140 miles, taking about 22h 56min. A direct flight would take roughly 2h 25min. Both are located in United States — Boulder in Colorado and Mount Rainier in Washington.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare. For a trip of this distance, flying is significantly faster. However, driving offers the flexibility to explore stops along the way.

Coordinates come from public place data for Boulder and Mount Rainier. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.