Distance between cities › USA › South Dakota › Saint Onge, SD › Distance from Saint Onge to Spearfish Book Hotels

Distance from Saint Onge, SD to Spearfish, SD

Distance

12 mi

Time

20 minutes

Gas Cost

$1 - $2

There are 7.81 miles from Saint Onge to Spearfish in southwest direction and 12 miles (19.31 kilometers) by car, following the CR 230 route.

Saint Onge and Spearfish are 20 minutes far apart, if you drive non-stop .

This is the fastest route from Saint Onge, SD to Spearfish, SD.

Saint Onge, SD and Spearfish, SD are in the same time zone (MDT). Current time in both locations is 10:20 am.

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Lowest Price Rental Cars in Saint Onge, SD

Planning on renting a car to go from Saint Onge, SD to Spearfish, SD? Here there are some offers to rent a car in Saint Onge, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Saint Onge »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 0.49 gallons of gas to cover the route between Saint Onge, SD and Spearfish, SD.

The estimated cost of gas to go from Saint Onge to Spearfish is $1.55.

During the route, an average car will release 9.67 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.14 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Saint Onge, SD and Spearfish, SD

If you want to meet halfway between Saint Onge, SD and Spearfish, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.475307 and -103.758232, or 44º 28' 31.1052" N, 103º 45' 29.6352" W. This location is 6.15 miles away from Saint Onge, SD and Spearfish, SD and it would take approximately 10 minutes to reach the halfway point from both locations.