How far is Spearfish, SD from Fort Pierre, SD?
The driving distance from Spearfish, SD to Fort Pierre, SD is about 193.2 miles (310.9 km), with a travel time of about 03h 39m by car.
- The straight-line flight distance is about 172.2 miles (277.2 km).
- For a round trip, plan for roughly 07h 19m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
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 03h 39m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Human settlement in Meade County, South Dakota, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Snow Showers Likely
Chance Snow Showers
Driving Route Map
The map below follows the saved road route between Spearfish and Fort Pierre.
Turn-by-Turn Driving Directions
Step-by-step road directions between Spearfish and Fort Pierre.
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1
Start on North Main Street
26 m · 30 sec · North Main Street
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2
Continue on North Main Street
51 m · 10 sec · North Main Street
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3
Turn right onto East Jackson Boulevard
2777 ft · 2 min · East Jackson Boulevard
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4
Take the ramp right toward I 90 East, US 85 South
1555 ft · 38 sec
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5
Merge slight left
14.2 mi · 14 min
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6
Continue straight
3 mi · 3 min
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7
Take the exit slight right
1650 ft · 42 sec
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8
Turn left onto Lazelle Street
2.4 mi · 3 min · Lazelle Street
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9
Continue on SD Highway 34
133.5 mi · 2 hr 32 min · SD Highway 34
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10
Continue on US Highway 14/34
36.6 mi · 42 min · US Highway 14/34
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11
Continue on West Highway 14/34
1.1 mi · 1 min · West Highway 14/34
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12
Turn right onto North Deadwood Street
1.1 km · 50 sec · North Deadwood Street
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13
Continue on North 1st Street
2335 ft · 32 sec · North 1st Street
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14
Arrive at your destination
0 m · 1 sec · South 1st Street
Car Route Details
A richer read on the saved driving route between Spearfish and Fort Pierre.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
SD Highway 34
Continue on SD Highway 34
134 mi · 02h 32m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Snow Showers Likely leaving Spearfish and Chance Snow Showers near Fort Pierre.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Spearfish to Fort Pierre?
The road trip is about 193.2 miles (310.9 km) and usually takes 03h 39m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Plainview is a useful midpoint, sitting about 96.4 miles from Spearfish and 96.8 miles from Fort Pierre.
How much longer is the road route than the straight-line distance?
The direct path is about 172.2 miles (277.2 km), while the road route adds roughly 21 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 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 9:40 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.72 one way or $51.44 round trip. Estimated CO2 is about 60.6 kg one way.
What should you check before leaving?
Before you leave, expect Snow Showers Likely around Spearfish and Chance Snow Showers near Fort Pierre.
Flight Path Map
This map shows the direct air route between Spearfish and Fort Pierre. Straight-line distance: 172.25 mi (277.21 km).
#1 Spearfish
City in Lawrence County, South Dakota, United States
| Population | 11,900 |
| Coordinates | 44.4908200, -103.8593700 |
| Altitude | 1112 |
| Country | United States |
#2 Fort Pierre
City in South Dakota, United States of America
| Population | 2,236 |
| Coordinates | 44.3535900, -100.3737400 |
| Altitude | 437 |
| Country | United States |
End: Fort Pierre (-100.37374, 44.35359)
Estimated Travel Time
Distance: 311 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 26m |
| 40 mph (64.37 km/h) | 04h 49m |
| 50 mph (80.47 km/h) | 03h 51m |
| 60 mph (96.56 km/h) | 03h 13m |
| 70 mph (112.65 km/h) | 02h 45m |
| 80 mph (129 km/h) | 02h 24m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $25.72 | $51.44 |
| Mid-grade | $4.25 | $29.01 | $58.01 |
| Premium | $4.65 | $31.74 | $63.48 |
| Diesel | $5.30 | $36.17 | $72.35 |
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 · Apr 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.