Fort Collins to San Diego: Road Trip Guide & Distance

861 miles 1385.7 km · straight line
1138.4 miles actual route 1832.1 km · driving distance
19h 58min estimated drive time
$110 - $135 estimated fuel cost
~2h 14min flight time
235° SW bearing direction

How far is Fort Collins from San Diego?

The distance from Fort Collins to San Diego is 861 miles (1385.7 km) as the crow flies. San Diego is located SW of Fort Collins. By car, the driving distance is approximately 1138.4 miles, taking about 19h 58min. A direct flight would take roughly 2h 14min. Both are located in United States — Fort Collins 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 Fort Collins 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 Fort Collins to San Diego

Method Time Est. Cost Best For
Drive 19h 58min $110 - $135 Flexible stops
Fly ~2h 14min $80–200* Speed
Bus ~23h 58min $91–$171* Budget
Train ~25h 57min $137–$398* Comfort

Suggested Stops Between Fort Collins & San Diego

Quick Facts

Fort Collins
40.59°N, 105.08°W
America/Denver
1525m 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 287 hours of non-stop walking
  • By bicycle at 12 mph, the journey would take roughly 72 hours
  • You could travel this distance about 28.9 times to circle the Earth's equator
Data Sources & Estimate Notes GeoNames · OpenStreetMap · OSRM