Boulder to San Antonio: Road Trip Guide & Distance
How far is Boulder from San Antonio?
The distance from Boulder to San Antonio is 826.1 miles (1329.5 km) as the crow flies. San Antonio is located SSE of Boulder. By car, the driving distance is approximately 957.3 miles, taking about 17h 9min. A direct flight would take roughly 2h 10min. Both are located in United States — Boulder in Colorado and San Antonio in Texas.
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 Boulder and San Antonio. The driving distance uses an OSRM road-route result when route data is available. 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 San Antonio
Suggested Stops Between Boulder & San Antonio
- 185 mi
- 2381 mi
- 3606 mi
- 4127 mi
- 5448 mi
Quick Facts
Did You Know?
- At walking speed (3 mph), it would take about 275 hours of non-stop walking
- By bicycle at 12 mph, the journey would take roughly 69 hours
- You could travel this distance about 30.1 times to circle the Earth's equator