Mount Rainier to Sun Valley: Road Trip Guide & Distance

How far is Mount Rainier from Sun Valley?

The distance from Mount Rainier to Sun Valley is 420.8 miles (677.2 km) as the crow flies. Sun Valley is located ESE of Mount Rainier. By car, the driving distance is approximately 504.9 miles, taking about 10h 9min. A direct flight would take roughly 1h 21min. Both are located in United States — Mount Rainier in Washington and Sun Valley in Idaho.

This is a solid day of driving. Be sure to take breaks every 2-3 hours to avoid driver fatigue, and plan your meals ahead of time. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility.

Coordinates come from public place data for Mount Rainier and Sun Valley. 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.