North Cascades to Sun Valley: Road Trip Guide & Distance

How far is North Cascades from Sun Valley?

The distance from North Cascades to Sun Valley is 482.5 miles (776.5 km) as the crow flies. Sun Valley is located SE of North Cascades. By car, the driving distance is approximately 579 miles, taking about 11h 39min. A direct flight would take roughly 1h 28min. Both are located in United States — North Cascades 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 North Cascades 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.