How far is Spearfish, SD from Britton, SD?
The driving distance from Spearfish, SD to Britton, SD is about 412.7 miles (664.1 km), with a travel time of about 08h 07m by car.
- The straight-line flight distance is about 310.9 miles (500.3 km).
- For a round trip, plan for roughly 16h 14m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 08h 07m.
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.
City in Hughes County, South Dakota, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Sunny
Driving Route Map
The map below follows the saved road route between Spearfish and Britton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Spearfish and Britton.
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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
1.2 mi · 1 min · West Highway 14/34
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12
Turn left onto North Highway 83
2629 ft · 41 sec · North Highway 83
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13
Continue on West Sioux Avenue
1.5 km · 1 min · West Sioux Avenue
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14
Turn left onto South Pierre Street
788 ft · 19 sec · South Pierre Street
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15
Continue on South Euclid Avenue
1.5 km · 1 min · South Euclid Avenue
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16
Continue on North Highway 14
2.3 mi · 3 min · North Highway 14
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17
Continue on US Highway 14
14.1 mi · 16 min · US Highway 14
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18
Take the exit sharp left
100 m · 9 sec
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19
Merge slight left
36.1 mi · 41 min
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20
Turn left onto US Highway 83
30.7 mi · 35 min · US Highway 83
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21
Turn right onto US Highway 12
65.3 mi · 1 hr 14 min · US Highway 12
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22
Continue on 134th Street
6.3 mi · 7 min · 134th Street
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23
Continue on US Highway 12
2.8 mi · 3 min · US Highway 12
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24
Continue on 6th Avenue Southwest
113 m · 14 sec · 6th Avenue Southwest
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25
Turn left onto South US Highway 281
1.5 mi · 3 min · South US Highway 281
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26
Turn left onto North US Highway 281
1.7 mi · 3 min · North US Highway 281
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27
Continue on 386th Avenue
18 mi · 21 min · 386th Avenue
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28
Turn right onto 112th Street
16.8 mi · 25 min · 112th Street
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29
Turn straight onto SD Highway 10
1348 ft · 23 sec · SD Highway 10
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30
Continue on 403rd Avenue
1.6 mi · 2 min · 403rd Avenue
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31
Turn straight onto SD Highway 10
1719 ft · 29 sec · SD Highway 10
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32
Continue on 110th Street
8.8 mi · 13 min · 110th Street
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33
Continue on SD Highway 10
10 mi · 15 min · SD Highway 10
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34
Continue on Vander Horck Street
1 mi · 2 min · Vander Horck Street
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35
Turn left onto Main Avenue
37 m · 3 sec · Main Avenue
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36
Arrive at your destination
0 m · 1 sec · Main Avenue
Car Route Details
A richer read on the saved driving route between Spearfish and Britton.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
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.
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.
Mostly Clear leaving Spearfish and Sunny near Britton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Spearfish to Britton?
The road trip is about 412.7 miles (664.1 km) and usually takes 08h 07m 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?
Blunt is a useful midpoint, sitting about 206 miles from Spearfish and 206.7 miles from Britton.
How much longer is the road route than the straight-line distance?
The direct path is about 310.9 miles (500.3 km), while the road route adds roughly 101.8 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 MDT. 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 $54.91 one way or $109.81 round trip. Estimated CO2 is about 129.4 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Spearfish and Britton, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Mostly Clear around Spearfish and Sunny near Britton.
Flight Path Map
This map shows the direct air route between Spearfish and Britton. Straight-line distance: 310.88 mi (500.31 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 Britton
City in and county seat of Marshall County, South Dakota, United States
| Population | 1,256 |
| Coordinates | 45.7916200, -97.7509400 |
| Altitude | 414 |
| Country | United States |
End: Britton (-97.75094, 45.79162)
Estimated Travel Time
Distance: 664 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 44m |
| 40 mph (64.37 km/h) | 10h 19m |
| 50 mph (80.47 km/h) | 08h 15m |
| 60 mph (96.56 km/h) | 06h 52m |
| 70 mph (112.65 km/h) | 05h 53m |
| 80 mph (129 km/h) | 05h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $54.91 | $109.81 |
| Mid-grade | $4.25 | $61.92 | $123.85 |
| Premium | $4.65 | $67.76 | $135.52 |
| Diesel | $5.30 | $77.23 | $154.45 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.