Casper to Mount Rainier: Road Trip Guide & Distance

How far is Casper from Mount Rainier?

The distance from Casper to Mount Rainier is 803.4 miles (1293 km) as the crow flies. Mount Rainier is located WNW of Casper. By car, the driving distance is approximately 964.1 miles, taking about 19h 24min. A direct flight would take roughly 2h 7min. Both are located in United States — Casper in Wyoming 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 Casper 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.