North Spearfish, SD to Mitchell, SD is 325.1 miles and takes about 5h 15m via I 90, with a fuel budget near $50 and enough daylight to finish in a day. This route stays within the vast Great Plains region, offering a straightforward drive across South Dakota. It's a solid option if you're looking for a direct path with minimal detours. Given the relatively short duration, it's easily manageable as a single-day trip, allowing you to maximize your time at your destination. Consider this route for its simplicity and efficiency.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
162.5 miles from North Spearfish, SD
A natural place for your longest stop of the day
, about 2h 36m into the drive
.
Main Roads
Road
Distance
Duration
I 90
321.1 mi
5h 6m
West Havens Avenue
0.8 mi
2m
South Ohlman Street
0.8 mi
1m
McGuigan Road
0.8 mi
1m
South Sanborn Boulevard
0.5 mi
1m
I 90 Business
0.4 mi
<1m
Old Belle Road
0.2 mi
<1m
West 1st Avenue
<0.1 mi
<1m
Longest stretch:
I 90
— 321.1 mi, about 5h 6m
Traffic on I-90
Hour-of-day weekday pattern from 35 FHWA count stations on your route.
Peak
4 PM
~608 veh/hr typical
· worst 856
Quietest
2 AM
~25 veh/hr
Peak-to-quiet ratio
24.3×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between North Spearfish, SD and Mitchell, SD.
1
Start on this road
427 ft·35 sec·this road
2
Turn left onto CR 1341
0.8 mi·1 min·McGuigan Road
3
Continue on CR 1050
0.2 mi·25 sec·Old Belle Road
4
Take the ramp
0.4 mi·50 sec
Toward I-90 East
5
Merge onto I 90; US 14
321 mi·5 hr 6 min·I 90; US 14
6
Take the exit onto I 90 Business
0.4 mi·53 sec·I 90 Business
7
Turn left onto I 90 Business; SD 37
0.8 mi·1 min·South Ohlman Street
8
Take the exit
302 ft·8 sec
9
Turn straight onto I 90 Business
0.8 mi·2 min·West Havens Avenue
10
Turn left onto South Sanborn Boulevard
0.5 mi·1 min·South Sanborn Boulevard
11
Turn left onto West 1st Avenue
34 ft·1 sec·West 1st Avenue
12
Arrive at destination
West 1st Avenue
Trip Plan
For this 5h 15m drive, leaving in the morning will give you ample daylight to reach Mitchell. With only one recommended stop and the majority of the route on I 90, you can easily cover the 325.1 miles in a single day. Keep an eye on your fuel gauge, as the longest stretch without a major highway exit is 321.1 miles. While the fuel cost is estimated at $50, it's always wise to top off before departing North Spearfish, especially since you'll be covering a considerable distance on the interstate before reaching the city limits of Mitchell.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 162.5 miles from North Spearfish, SD, or about 2h 36m into the drive.
The longest continuous stretch on this route runs about 321.1 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 72 miles or 1h 10m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 162.5 miles or 2h 36m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 16m
Traffic, exits, and arrival timing usually matter more near Mitchell, SD than in the middle of the route.
Before You Leave
+
Open the route before leaving North Spearfish, SD so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from North Spearfish, SD
This is one driving day of about 325.1 miles and 5h 15m.
Your first comfortable stop window is around 72 miles from North Spearfish, SD.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 90 for about 321.1 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 8
5 decision points cluster between mile 0.1 and 325 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
3
0.1 mi into trip|~0m in|CR 1341 / McGuigan Road
Turn left onto CR 1341 / McGuigan Road
Navigation decision point
4
1.1 mi into trip|~2m in
Take the ramp toward I-90 East
Navigation decision point
Toward I-90 East
4
322.9 mi into trip|~5h 10m in|I 90 Business; SD 37 / South Ohlman Street
Turn left onto I 90 Business; SD 37 / South Ohlman Street
Navigation decision point
4
324.5 mi into trip|~5h 14m in|South Sanborn Boulevard
Turn left onto South Sanborn Boulevard
Navigation decision point
4
325 mi into trip|~5h 15m in|West 1st Avenue
Turn left onto West 1st Avenue
Navigation decision point
Fuel & Cost
Regular Gas
$54.05 one way
$108.10 round trip
$4.22/gal25.4 MPG avg114 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.60
$58.88
$117.75
premium
$5.18
$66.34
$132.68
diesel
$5.35
$68.48
$136.95
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$54
Meals
$25–$50
Total
$79–$104
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 113.7 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $34 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
97.5
1
$34.14
$15.60
Efficient EV
81.3
0
$28.45
$13.00
EV Truck/SUV
130
1
$45.51
$20.81
Gas CO2
114 kg
EV CO2
38 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jun 1, 2026
Origin
North Spearfish, SD
Afternoon
in North Spearfish on Wednesday
Local time
1:11 PM
MDT
Current temp
48°F
Mostly Clear
SW 2 mph1% chanceLive forecast
Flood Warning
Flood Warning issued May 31 at 10:28PM CDT until June 1 at 9:45AM CDT by NWS Aberdeen SD
Destination
Mitchell, SD
Afternoon
in Mitchell on Wednesday
Local time
2:11 PM
CDT
Current temp
57°F
Partly Cloudy
W 5 mph1% chanceLive forecast
Flood Warning
Flood Warning issued May 31 at 10:28PM CDT until June 1 at 9:45AM CDT by NWS Aberdeen SD
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
1 hour later
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
9 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 15m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Mount Rushmore National Memorial
National Memorial
Majestic figures of George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln, surrounded by the beauty of the Black Hills of South Dakota, tell the story of the birth, growth, devel...
20 mi from route
~50 min detour
Free
near mile 44.8
The rugged beauty of the Badlands draws visitors from around the world. These striking geologic deposits contain one of the world’s richest fossil beds. Ancient horses and rhinos once roamed here. The...
25 mi from route
~61 min detour
$30
near mile 100.9
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is predominantly highway, with 99% of the 325.1 miles on I 90. You'll experience a long stretch of 321.1 miles on the interstate, meaning you'll encounter frequent exit signs and services for a significant portion of your travel. The transition to surface roads will occur near the end of your trip, specifically on West Havens Avenue and South Ohlman Street as you approach Mitchell. Expect a consistent cruising speed for most of the drive.
99% highway — fuel and pacing are the main things to plan.
12 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 321.1 mi on I 90.
How Hard Is This Drive?
3/10
This is a straightforward highway drive that stays mostly on I 90 and West Havens Avenue. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.1 miles in near CR 1341 / McGuigan Road.
Driving Effort3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 5h 15m drive. You will face about 8 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (CR 1341 / McGuigan Road): Navigation decision point; at 1.1 miles: Navigation decision point; at 322.9 miles (I 90 Business; SD 37 / South Ohlman Street): Navigation decision point.
Mitchell is a city in Southeast South Dakota on Interstate 90 about 75 miles (121 km) west of Sioux Falls. Mitchell is located in the heart of South Dakota, with rich rolling farmland leading into wide open prairies.
Top landmarks
•Koch Apartments — apartment building in Mitchell, United States of America
The longest stretch is about 321.1 miles on I 90. The full list of main roads is in the Roads section above.
Yes — we found about 21 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 21 rest areas along the route for bathroom stops.
Mostly yes along the main roads, but rural stretches through SD can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: at 0.1 miles (CR 1341 / McGuigan Road): Navigation decision point; at 1.1 miles: Navigation decision point; at 322.9 miles (I 90 Business; SD 37 / South Ohlman Street): Navigation decision point.
Yes — Mount Rushmore National Memorial and Badlands National Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.3 hours each way, a round trip means 10.5 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Mitchell, SD before the return drive.
