How far is Spearfish, SD from Sioux Falls, SD?
Fastest route
The driving distance between Spearfish, South Dakota and Sioux Falls, South Dakota is 390.7 miles (630.86 kilometers). The fastest route is to take I-90 E. The drive time is about 5 hours and 30 minutes.
Here are the steps for the most direct route:
- Head north on Main St toward E Jackson Blvd.
- Turn right at the 1st cross street onto E Jackson Blvd.
- Turn right to merge onto I-90 E/US-85 S toward Rapid City.
- Merge onto I-90 E/US-85 SContinue to follow I-90 E.
- Take exit 396A to merge onto I-29 S toward Sioux City.
- Keep right to continue on Exit 81, follow signs for Russell St/Maple St/Arena and Convention Ctr.
- Turn left onto W Maple St.
- Continue onto W Russell St.
- Continue straight to stay on W Russell St.
- Turn right onto N Minnesota Ave.
If you're looking for a more scenic route, you can take I-90 E to US-14 E. This route is about 403.1 miles long and takes about 5 hours and 45 minutes to drive.
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 05h 20m.
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.
Census-designated place in Lyman County, South Dakota, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Widespread Frost then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Spearfish and Sioux Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Spearfish and Sioux Falls.
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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
7.6 mi · 8 min
-
7
Continue straight
23.6 mi · 24 min
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8
Continue straight
342.5 mi · 5 hr 24 min
-
9
Take the exit slight right toward I 229 South
2551 ft · 33 sec
-
10
Merge slight left
3.6 mi · 4 min
-
11
Take the exit slight right toward 10th Street, Downtown
1309 ft · 32 sec
-
12
Keep slight right to continue on SD 42: Downtown, Washington Pavilion
610 ft · 21 sec
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13
Turn right onto South Lowell Avenue
633 ft · 23 sec · South Lowell Avenue
-
14
Turn left onto East 8th Street
992 ft · 29 sec · East 8th Street
-
15
Turn right onto North Chicago Avenue
540 ft · 24 sec · North Chicago Avenue
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16
Arrive at your destination
0 m · 1 sec · North Chicago Avenue
Car Route Details
A richer read on the saved driving route between Spearfish and Sioux Falls.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 90 East
Continue straight
343 mi · 05h 24m
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.
Sunny leaving Spearfish and Widespread Frost then Mostly Sunny near Sioux Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Spearfish to Sioux Falls?
The road trip is about 393.3 miles (632.9 km) and usually takes 05h 20m 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?
Vivian is a useful midpoint, sitting about 196.4 miles from Spearfish and 196.9 miles from Sioux Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 361.5 miles (581.7 km), while the road route adds roughly 31.8 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 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 6:18 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $52.34 one way or $104.68 round trip. Estimated CO2 is about 123.4 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Spearfish and Sioux Falls, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Spearfish and Widespread Frost then Mostly Sunny near Sioux Falls.
Flight Path Map
This map shows the direct air route between Spearfish and Sioux Falls. Straight-line distance: 361.46 mi (581.71 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 Sioux Falls
The largest city in South Dakota.
| Population | 157,584 |
| Coordinates | 43.5499700, -96.7003300 |
| Altitude | 448 |
| Country | United States |
End: North Chicago Avenue (-96.700171, 43.549971)
Estimated Travel Time
Distance: 633 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 06m |
| 40 mph (64.37 km/h) | 09h 49m |
| 50 mph (80.47 km/h) | 07h 51m |
| 60 mph (96.56 km/h) | 06h 33m |
| 70 mph (112.65 km/h) | 05h 37m |
| 80 mph (129 km/h) | 04h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $52.34 | $104.68 |
| Mid-grade | $4.25 | $59.03 | $118.06 |
| Premium | $4.65 | $64.60 | $129.20 |
| Diesel | $5.30 | $73.62 | $147.24 |
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 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.