Boulder to Twin Falls: Road Trip Guide & Distance
How far is Boulder from Twin Falls?
The distance from Boulder to Twin Falls is 508.2 miles (817.9 km) as the crow flies. Twin Falls is located WNW of Boulder. By car, the driving distance is approximately 609.9 miles, taking about 12h 16min. A direct flight would take roughly 1h 31min. Both are located in United States — Boulder in Colorado and Twin Falls in Idaho.
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.
Coordinates come from public place data for Boulder and Twin Falls. 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.
How to Get from Boulder to Twin Falls
Suggested Stops Between Boulder & Twin Falls
- 1363 mi
- 2232 mi
- 3368 mi
- 488 mi
Quick Facts
Did You Know?
- At walking speed (3 mph), it would take about 169 hours of non-stop walking
- By bicycle at 12 mph, the journey would take roughly 42 hours
- You could travel this distance about 49 times to circle the Earth's equator