How far is Spearfish, SD from Baltic, SD?
The driving distance from Spearfish, SD to Baltic, SD is about 397.7 miles (640 km), with a travel time of about 06h 23m by car.
- The straight-line flight distance is about 356.5 miles (573.8 km).
- For a round trip, plan for roughly 12h 46m 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 06h 23m.
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.
Census-designated place in Lyman 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 Baltic.
Turn-by-Turn Driving Directions
Step-by-step road directions between Spearfish and Baltic.
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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
-
8
Continue straight
338.8 mi · 5 hr 20 min
-
9
Take the exit slight right toward I 29: Fargo
1129 ft · 28 sec
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10
Merge slight left
10.1 mi · 10 min
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11
Take the exit slight right toward Baltic, Colton
1311 ft · 33 sec
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12
Turn right onto 250th Street
1.7 mi · 3 min · 250th Street
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13
Continue on Lovely Avenue
1735 ft · 59 sec · Lovely Avenue
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14
Arrive at your destination
0 m · 1 sec · Lovely Avenue
Car Route Details
A richer read on the saved driving route between Spearfish and Baltic.
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
339 mi · 05h 20m
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 Baltic.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Spearfish to Baltic?
The road trip is about 397.7 miles (640 km) and usually takes 06h 23m 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?
Vivian is a useful midpoint, sitting about 198.4 miles from Spearfish and 199.3 miles from Baltic.
How much longer is the road route than the straight-line distance?
The direct path is about 356.5 miles (573.8 km), while the road route adds roughly 41.2 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 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 $52.91 one way or $105.81 round trip. Estimated CO2 is about 124.7 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Spearfish and Baltic, 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 Baltic.
Flight Path Map
This map shows the direct air route between Spearfish and Baltic. Straight-line distance: 356.54 mi (573.79 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 Baltic
City in Minnehaha County, South Dakota, United States
| Population | 1,201 |
| Coordinates | 43.7613600, -96.7403300 |
| Altitude | 450 |
| Country | United States |
End: Baltic (-96.74033, 43.76136)
Estimated Travel Time
Distance: 640 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 15m |
| 40 mph (64.37 km/h) | 09h 56m |
| 50 mph (80.47 km/h) | 07h 57m |
| 60 mph (96.56 km/h) | 06h 37m |
| 70 mph (112.65 km/h) | 05h 40m |
| 80 mph (129 km/h) | 04h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $52.91 | $105.81 |
| Mid-grade | $4.25 | $59.67 | $119.34 |
| Premium | $4.65 | $65.30 | $130.59 |
| Diesel | $5.30 | $74.42 | $148.83 |
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.