Crossing the width of South Dakota, this 350.4-mile journey connects Sioux Falls to Rapid City in approximately 5 hours and 37 minutes. Because the route is entirely highway-focused, you can comfortably complete the trip in a single day, though you might prefer an overnight stay to fully enjoy the destination. Expect to budget about $53 for fuel for this straightforward transit across the Great Plains. Navigating primarily via I-90, you will find this an efficient way to traverse the state. Whether you are traveling for business or a quick getaway, the predictability of this interstate-heavy path makes planning your itinerary simple and stress-free.
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
175.2 miles from Sioux Falls, SD
A natural place for your longest stop of the day
, about 2h 49m into the drive
.
Main Roads
Road
Distance
Duration
I 90
343.1 mi
5h 25m
I 229 Business
4.2 mi
5m
I 190
1.4 mi
1m
Mount Rushmore Road
0.2 mi
<1m
Omaha Street
0.2 mi
<1m
East 8th Street
0.2 mi
<1m
North Lowell Avenue
0.1 mi
<1m
East 10th Street
0.1 mi
<1m
Longest stretch:
I 90
— 343.1 mi, about 5h 25m
Turn-by-Turn Driving Directions
Step-by-step road directions between Sioux Falls, SD and Rapid City, SD.
1
Start on North Chicago Avenue
0.1 mi·29 sec·North Chicago Avenue
2
At end of road, turn left onto East 8th Street
0.2 mi·29 sec·East 8th Street
3
Turn right onto North Lowell Avenue
0.1 mi·19 sec·North Lowell Avenue
4
Turn left onto I 229 Business; SD 42
0.1 mi·24 sec·East 10th Street
5
Take the ramp onto I 229 Business
4.2 mi·5 min·I 229 Business
Use the straight / slight right lanes.
6
Take the exit
0.3 mi·45 sec
Toward I 90
7
Merge onto I 90
343 mi·5 hr 25 min·I 90
8
Take the exit
0.4 mi·1 min
Toward I 190, US 16: Downtown, Black Hawk National Forest, Mount Rushmore
9
Continue on I 190
1.4 mi·1 min·I 190
10
Turn left onto US 16; SD 44
0.2 mi·39 sec·Omaha Street
Use the right lane.
11
Turn right onto US 16
0.2 mi·45 sec·Mount Rushmore Road
Use the right lane.
12
Arrive at destination
US 16
Trip Plan
For the smoothest experience, plan your departure early in the morning to maximize your daylight hours on the road. Since the trip involves one primary stop, utilize that time to refuel and stretch your legs, keeping your $53 fuel budget in mind as you monitor your tank. Because this drive is primarily a long, uninterrupted stretch of I-90, staying alert is key to managing the distance comfortably. If you find the straight, high-speed nature of the interstate tiring, take advantage of the single planned stop to reset. A smart tip for this route is to check regional weather patterns before leaving, as conditions across the Great Plains can shift significantly during the 350.4-mile transit.
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 175.2 miles from Sioux Falls, SD, or about 2h 49m into the drive.
The longest continuous stretch on this route runs about 343.1 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 77 miles or 1h 16m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 175.2 miles or 2h 49m 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 38m
Traffic, exits, and arrival timing usually matter more near Rapid City, SD than in the middle of the route.
Before You Leave
+
Open the route before leaving Sioux Falls, 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 Sioux Falls, SD
This is one driving day of about 350.4 miles and 5h 37m.
Your first comfortable stop window is around 77 miles from Sioux Falls, 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 343.1 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 9
5 decision points cluster between mile 0.1 and 350.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.1 mi into trip|~0m in|East 8th Street
At end of road, turn left onto East 8th Street
Complex interchange - multiple decisions in a short stretch
4
0.3 mi into trip|~0m in|North Lowell Avenue
Turn right onto North Lowell Avenue
Navigation decision point
4
0.5 mi into trip|~1m in|I 229 Business
Take the ramp onto I 229 Business
Lane positioning matters here
Use the straight / slight right lanes.
5
348.1 mi into trip|~5h 32m in
Take the exit toward I 190, US 16: Downtown, Black Hawk National Forest, Mount Rushmore
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 190, US 16: Downtown, Black Hawk Natio...
7
350.1 mi into trip|~5h 36m in|US 16 / Mount Rushmore Road
Turn right onto US 16 / Mount Rushmore Road
Lane positioning matters here
Use the right lane.
Fuel & Cost
Regular Gas
$54.78 one way
$109.56 round trip
$3.97/gal25.4 MPG avg123 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$60.15
$120.29
premium
$4.89
$67.43
$134.86
diesel
$5.61
$77.36
$154.73
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$55
Meals
$25–$50
Total
$80–$105
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 122.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $37 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
105.1
1
$36.79
$16.82
Efficient EV
87.6
1
$30.66
$14.02
EV Truck/SUV
140.2
1
$49.06
$22.43
Gas CO2
123 kg
EV CO2
41 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 Apr 15, 2026
Origin
Sioux Falls, SD
Evening
in Sioux Falls on Saturday
Local time
8:11 PM
CDT
Current temp
47°F
Unavailable
Live forecast
Destination
Rapid City, SD
Evening
in Rapid City on Saturday
Local time
7:11 PM
MDT
Current temp
78°F
Unavailable
Live forecast
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 earlier
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
31 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 37m 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...
18 mi from route
~44 min detour
Free
near mile 350.4
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...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a consistent interstate experience, as 100% of this 350.4-mile route is comprised of highways. You will spend the vast majority of your time on I-90, which accounts for a 343.1-mile stretch of the drive. The road maintains a steady, high-speed pace, utilizing I-229 Business and I-190 to transition seamlessly into your arrival. While the drive is focused on efficiency rather than technical curves, the transition across the Great Plains offers a clear, open perspective from behind the wheel. It is a classic interstate grind that prioritizes speed and directness for those looking to reach Rapid City without unnecessary detours.
100% 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: 343.1 mi on I 90.
How Hard Is This Drive?
3/10
This is a straightforward highway drive that stays mostly on I 90 and I 229 Business. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.1 miles in near East 8th Street.
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 37m drive. You will face about 9 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 (East 8th Street): Complex interchange - multiple decisions in a short stretch; at 0.3 miles (North Lowell Avenue): Navigation decision point; at 0.5 miles (I 229 Business): Lane positioning matters here.
Sioux Falls is a city of about 184,000 (2019) in Southeast South Dakota. Founded in 1883 in what was then known as the Dakota Territory, Sioux Falls has grown from a sleepy Midwestern town into a resort for shopping and tourism in the northern Great Plains. It is widely recognized as the largest urban center between Minneapolis and Denver.
The longest stretch is about 343.1 miles on I 90. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
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. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
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 (East 8th Street): Complex interchange - multiple decisions in a short stretch; at 0.3 miles (North Lowell Avenue): Navigation decision point; at 0.5 miles (I 229 Business): Lane positioning matters here.
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 5.6 hours each way, a round trip means 11.3 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Rapid City, SD before the return drive.
