Castle Rock to San Diego: Road Trip Guide & Distance

825.9 miles 1329.1 km · straight line
1104.6 miles actual route 1777.7 km · driving distance
19h 23min estimated drive time
$106 - $131 estimated fuel cost
~2h 10min flight time
240° WSW bearing direction

How far is Castle Rock from San Diego?

The distance from Castle Rock to San Diego is 825.9 miles (1329.1 km) as the crow flies. San Diego is located WSW of Castle Rock. By car, the driving distance is approximately 1104.6 miles, taking about 19h 23min. A direct flight would take roughly 2h 10min. Both are located in United States — Castle Rock in Colorado and San Diego in California.

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 Castle Rock and San Diego. 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 Castle Rock to San Diego

Method Time Est. Cost Best For
Drive 19h 23min $106 - $131 Flexible stops
Fly ~2h 10min $80–200* Speed
Bus ~23h 16min $88–$166* Budget
Train ~25h 12min $133–$387* Comfort

Suggested Stops Between Castle Rock & San Diego

Quick Facts

Castle Rock
39.37°N, 104.86°W
America/Denver
1897m elevation
San Diego
32.72°N, 117.16°W
America/Los_Angeles
20m elevation
Explore more routes from San Diego

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 30.2 times to circle the Earth's equator
Data Sources & Estimate Notes GeoNames · OpenStreetMap · OSRM