Barstow to Boulder: Road Trip Guide & Distance

How far is Barstow from Boulder?

The distance from Barstow to Boulder is 734.3 miles (1181.7 km) as the crow flies. Boulder is located ENE of Barstow. By car, the driving distance is approximately 881.1 miles, taking about 17h 44min. A direct flight would take roughly 1h 59min. Both are located in United States — Barstow in California and Boulder in Colorado.

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. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility. 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 Barstow and Boulder. 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.