How far is Sioux Falls, SD from Spearfish, SD?
Fastest route
The route from Sioux Falls, South Dakota, USA to Spearfish, South Dakota, USA is approximately 391 miles and takes about 5 hours and 43 minutes via I-90 W. Your destination is in a different time zone.
Directions
- Get on I-29 N.
- Head north on S Minnesota Ave.
- Use the left 2 lanes to turn left after Burger King (on the left).
- Turn right to merge onto I-29 N.
- Follow I-90 W to E Jackson Blvd in Spearfish. Take exit 12 from I-90 W.
- Take exit 84B to merge onto I-90 W toward Rapid City.
- Take exit 12 for Jackson Blvd toward State Univ/Black Hls.
- Follow E Jackson Blvd to N Main St.
- Turn left onto E Jackson Blvd.
- Arrive at Spearfish, South Dakota, USA.
Tips & Suggestions
- 🚗 Make sure to plan for potential traffic conditions along the way.
- ⛽ It's a good idea to fuel up your vehicle before embarking on the journey.
- 🕒 Keep in mind that your destination is in a different time zone, so adjust your schedule accordingly.
- 🚧 Pay attention to road signs and follow the directions for exits and merges.
- 🗺️ Consider using a GPS or navigation app for real-time guidance.
- 🚫 Observe speed limits and follow all traffic rules for a safe trip.
- 📞 Have emergency contact numbers and roadside assistance information handy, just in case.
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 23m.
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.
Mostly Sunny
Partly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Sioux Falls and Spearfish.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sioux Falls and Spearfish.
-
1
Start on North Chicago Avenue
540 ft · 29 sec · North Chicago Avenue
-
2
At the end of the road, turn left onto East 8th Street
992 ft · 29 sec · East 8th Street
-
3
Turn right onto North Lowell Avenue
633 ft · 19 sec · North Lowell Avenue
-
4
Turn left onto East 10th Street
549 ft · 25 sec · East 10th Street
-
5
Take the ramp slight left
4.2 mi · 5 min
-
6
Take the exit straight toward I 90
1343 ft · 46 sec
-
7
Merge slight left
388.2 mi · 6 hr 11 min
-
8
Take the exit slight right toward Jackson Boulevard, Black Hills State University
1541 ft · 43 sec
-
9
Turn left onto East Jackson Boulevard
1 km · 2 min · East Jackson Boulevard
-
10
Turn left onto North Main Street
45 m · 14 sec · North Main Street
-
11
Arrive at your destination
0 m · 1 sec · North Main Street
Car Route Details
A richer read on the saved driving route between Sioux Falls 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
Merge slight left
388 mi · 06h 11m
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.
Mostly Sunny leaving Sioux Falls and Partly Sunny then Slight Chance Showers And Thunderstorms near Spearfish.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sioux Falls to Spearfish?
The road trip is about 393.7 miles (633.6 km) and usually takes 05h 23m 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 196.7 miles from Sioux Falls and 197.1 miles from Spearfish.
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 32.2 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 CDT. If you want a more comfortable same-day return, try to leave by 6:12 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $52.38 one way or $104.76 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 Sioux Falls and Spearfish, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Sioux Falls and Partly Sunny then Slight Chance Showers And Thunderstorms near Spearfish.
Flight Path Map
This map shows the direct air route between Sioux Falls and Spearfish. Straight-line distance: 361.46 mi (581.71 km).
#1 Sioux Falls
The largest city in South Dakota.
| Population | 157,584 |
| Coordinates | 43.5499700, -96.7003300 |
| Altitude | 448 |
| 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 (-103.859247, 44.49086)
Estimated Travel Time
Distance: 634 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 07m |
| 40 mph (64.37 km/h) | 09h 50m |
| 50 mph (80.47 km/h) | 07h 52m |
| 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 | $52.38 | $104.76 |
| Mid-grade | $4.25 | $59.07 | $118.15 |
| Premium | $4.65 | $64.64 | $129.29 |
| Diesel | $5.30 | $73.67 | $147.35 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.