How far is Lemmon, SD from Harrisburg, SD?
The driving distance from Lemmon, SD to Harrisburg, SD is about 414.6 miles (667.2 km), with a travel time of about 06h 37m by car.
- The straight-line flight distance is about 319.3 miles (513.9 km).
- For a round trip, plan for roughly 13h 14m 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 37m.
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.
Unincorporated community in South Dakota
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Lemmon and Harrisburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lemmon and Harrisburg.
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1
Start on Main Avenue
2146 ft · 1 min · Main Avenue
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2
Turn left onto 10th Street East
95.6 mi · 1 hr 49 min · 10th Street East
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3
Continue on West Grand Crossing
3.4 mi · 4 min · West Grand Crossing
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4
Continue on US Highway 12
18.5 mi · 21 min · US Highway 12
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5
Continue on Highway 12 & 83
1.5 km · 1 min · Highway 12 & 83
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6
Continue on US Highway 12
17.8 mi · 20 min · US Highway 12
-
7
Continue straight
35.3 mi · 40 min
-
8
Continue straight
99.9 mi · 2 hr
-
9
Take the exit right toward I 29, US 81: Watertown
1761 ft · 43 sec
-
10
Merge slight left
135.4 mi · 2 hr 10 min
-
11
Take the exit slight right
1448 ft · 41 sec
-
12
Turn left onto 273rd Street
3.5 mi · 6 min · 273rd Street
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13
Continue on West Willow Street
1.6 mi · 3 min · West Willow Street
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14
Arrive at your destination
0 m · 1 sec · East Willow Street
Car Route Details
A richer read on the saved driving route between Lemmon and Harrisburg.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 29
Merge slight left
135 mi · 02h 10m
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.
Light Rain Likely leaving Lemmon and Chance Rain Showers near Harrisburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lemmon to Harrisburg?
The road trip is about 414.6 miles (667.2 km) and usually takes 06h 37m 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?
Bath is a useful midpoint, sitting about 206.1 miles from Lemmon and 208.5 miles from Harrisburg.
How much longer is the road route than the straight-line distance?
The direct path is about 319.3 miles (513.9 km), while the road route adds roughly 95.3 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 $55.17 one way or $110.34 round trip. Estimated CO2 is about 130 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Lemmon and Harrisburg, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Light Rain Likely around Lemmon and Chance Rain Showers near Harrisburg.
Flight Path Map
This map shows the direct air route between Lemmon and Harrisburg. Straight-line distance: 319.35 mi (513.94 km).
#1 Lemmon
City in South Dakota, United States of America
| Population | 1,160 |
| Coordinates | 45.9408300, -102.1593200 |
| Altitude | 783 |
| Country | United States |
#2 Harrisburg
City in South Dakota, United States of America
| Population | 7,126 |
| Coordinates | 43.4313700, -96.6972700 |
| Altitude | 435 |
| Country | United States |
End: Willow Street (-96.697271, 43.431465)
Estimated Travel Time
Distance: 667 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 48m |
| 40 mph (64.37 km/h) | 10h 21m |
| 50 mph (80.47 km/h) | 08h 17m |
| 60 mph (96.56 km/h) | 06h 54m |
| 70 mph (112.65 km/h) | 05h 55m |
| 80 mph (129 km/h) | 05h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $55.17 | $110.34 |
| Mid-grade | $4.25 | $62.22 | $124.44 |
| Premium | $4.65 | $68.09 | $136.18 |
| Diesel | $5.30 | $77.60 | $155.20 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.