How far is Dakota Dunes, SD from Spearfish, SD?
The driving distance from Dakota Dunes, SD to Spearfish, SD is about 470.5 miles (757.2 km), with a travel time of about 06h 41m by car.
- The straight-line flight distance is about 394.5 miles (634.9 km).
- For a round trip, plan for roughly 13h 22m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 06h 41m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Lyman County, South Dakota, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Dakota Dunes and Spearfish.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dakota Dunes and Spearfish.
-
1
Start on Glen Eagle Court
105 m · 18 sec · Glen Eagle Court
-
2
At the end of the road, turn right onto North Royal Troon
749 ft · 37 sec · North Royal Troon
-
3
At the end of the road, turn left onto Pebble Beach Drive
130 m · 23 sec · Pebble Beach Drive
-
4
Turn left onto East Sawgrass Trail
2280 ft · 2 min · East Sawgrass Trail
-
5
Enter the roundabout and take exit 1 toward Dakota Dunes Boulevard
82 m · 8 sec · Dakota Dunes Boulevard
-
6
Exit the roundabout onto Dakota Dunes Boulevard
1.3 mi · 3 min · Dakota Dunes Boulevard
-
7
Take the ramp sharp left toward I 29 North
1189 ft · 29 sec
-
8
Merge slight left
83 mi · 1 hr 21 min
-
9
Take the exit slight right toward I 90 West: Rapid City
1236 ft · 30 sec
-
10
Merge slight left
384.2 mi · 6 hr 6 min
-
11
Take the exit slight right toward Jackson Boulevard, Black Hills State University
1541 ft · 43 sec
-
12
Turn left onto East Jackson Boulevard
1 km · 2 min · East Jackson Boulevard
-
13
Turn left onto North Main Street
45 m · 14 sec · North Main Street
-
14
Arrive at your destination
0 m · 1 sec · North Main Street
Car Route Details
A richer read on the saved driving route between Dakota Dunes and Spearfish.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 90 West
Merge slight left
384 mi · 06h 06m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Dakota Dunes and Sunny near Spearfish.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dakota Dunes to Spearfish?
The road trip is about 470.5 miles (757.2 km) and usually takes 06h 41m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Reliance is a useful midpoint, sitting about 234.9 miles from Dakota Dunes and 235.6 miles from Spearfish.
How much longer is the road route than the straight-line distance?
The direct path is about 394.5 miles (634.9 km), while the road route adds roughly 76 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $62.60 one way or $125.20 round trip. Estimated CO2 is about 147.5 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Dakota Dunes and Spearfish, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Dakota Dunes and Sunny near Spearfish.
Flight Path Map
This map shows the direct air route between Dakota Dunes and Spearfish. Straight-line distance: 394.48 mi (634.85 km).
#1 Dakota Dunes
Township in Union County, South Dakota
| Population | 2,540 |
| Coordinates | 42.4874900, -96.4864200 |
| Altitude | 334 |
| Country | United States |
#2 Spearfish
City in Lawrence County, South Dakota, United States
| Population | 11,900 |
| Coordinates | 44.4908200, -103.8593700 |
| Altitude | 1112 |
| Country | United States |
End: North Main Street (-103.859186, 44.490846)
Estimated Travel Time
Distance: 757 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 15h 40m |
| 40 mph (64.37 km/h) | 11h 45m |
| 50 mph (80.47 km/h) | 09h 24m |
| 60 mph (96.56 km/h) | 07h 50m |
| 70 mph (112.65 km/h) | 06h 43m |
| 80 mph (129 km/h) | 05h 52m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $62.60 | $125.20 |
| Mid-grade | $4.25 | $70.60 | $141.20 |
| Premium | $4.65 | $77.26 | $154.51 |
| Diesel | $5.30 | $88.05 | $176.09 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in South Dakota · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.