How far is Billings, MT from Rapid City, SD?
The driving distance from Billings, MT to Rapid City, SD is about 317 miles (510.2 km), with a travel time of about 05h 59m by car.
- The straight-line flight distance is about 283.3 miles (455.9 km).
- For a round trip, plan for roughly 11h 58m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 05h 59m.
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.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Cloudy
Driving Route Map
The map below follows the saved road route between Billings and Rapid City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Billings and Rapid City.
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1
Start on Montana Avenue
2446 ft · 1 min · Montana Avenue
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2
Turn left onto North 18th Street
128 m · 9 sec · North 18th Street
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3
At the end of the road, turn right onto 1st Avenue North
1.1 km · 1 min · 1st Avenue North
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4
Continue on 1st Avenue North
84 m · 8 sec · 1st Avenue North
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5
Turn right onto US Highway 87 East
1.3 mi · 2 min · US Highway 87 East
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6
Turn left
1595 ft · 41 sec
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7
Continue straight
3.1 mi · 4 min
-
8
Keep slight right to continue on I 90 East: Sheridan
54 mi · 51 min
-
9
Take the exit slight right toward US 212 East: Little Bighorn Battlefield, Broadus
2032 ft · 54 sec
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10
Turn left
42.1 mi · 50 min
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11
Enter the roundabout and take exit 2 toward US Highway 212
66 m · 5 sec · US Highway 212
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12
Exit the roundabout onto US Highway 212
20.1 mi · 24 min · US Highway 212
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13
Continue on Main Street
3072 ft · 2 min · Main Street
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14
Continue on US Highway 212
43.7 mi · 51 min · US Highway 212
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15
Turn right onto Park Avenue
2986 ft · 1 min · Park Avenue
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16
Continue on US Highway 212
93.7 mi · 1 hr 47 min · US Highway 212
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17
Turn right onto North 5th Avenue
2.3 mi · 5 min · North 5th Avenue
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18
Turn left onto SD Highway 34
17.5 mi · 21 min · SD Highway 34
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19
Take the ramp left
10.7 mi · 11 min
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20
Continue straight
23.3 mi · 24 min
-
21
Take the exit slight right toward I 190: Mount Rushmore, Downtown
1.5 mi · 2 min
-
22
Turn left onto Omaha Street
1148 ft · 39 sec · Omaha Street
-
23
Turn right onto Mount Rushmore Road
1223 ft · 46 sec · Mount Rushmore Road
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24
Arrive at your destination
0 m · 1 sec · Mount Rushmore Road
Car Route Details
A richer read on the saved driving route between Billings and Rapid City.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
US Highway 212
Continue on US Highway 212
93.7 mi · 01h 47m
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.
Sunny leaving Billings and Chance Rain Showers then Cloudy near Rapid City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Billings to Rapid City?
The road trip is about 317 miles (510.2 km) and usually takes 05h 59m 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?
Broadus is a useful midpoint, sitting about 158.1 miles from Billings and 158.9 miles from Rapid City.
How much longer is the road route than the straight-line distance?
The direct path is about 283.3 miles (455.9 km), while the road route adds roughly 33.7 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 MDT. If you want a more comfortable same-day return, try to leave by 5:02 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $50.39 one way or $100.78 round trip. Estimated CO2 is about 99.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Billings and Chance Rain Showers then Cloudy near Rapid City.
Stop Ideas Near Broadus
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Broadus.
Miles City, MT
Flight Path Map
This map shows the direct air route between Billings and Rapid City. Straight-line distance: 283.26 mi (455.87 km).
#1 Billings
The most populous city in Montana.
| Population | 117,445 |
| Coordinates | 45.7832900, -108.5006900 |
| Altitude | 952 |
| Country | United States |
#2 Rapid City
The second most populous city in South Dakota.
| Population | 77,503 |
| Coordinates | 44.0805400, -103.2310100 |
| Altitude | 988 |
| Country | United States |
End: Rapid City (-103.23101, 44.08054)
Estimated Travel Time
Distance: 510 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 33m |
| 40 mph (64.37 km/h) | 07h 55m |
| 50 mph (80.47 km/h) | 06h 20m |
| 60 mph (96.56 km/h) | 05h 17m |
| 70 mph (112.65 km/h) | 04h 31m |
| 80 mph (129 km/h) | 03h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.50 | $50.39 | $100.78 |
| Mid-grade | $4.83 | $54.05 | $108.10 |
| Premium | $5.21 | $58.31 | $116.62 |
| Diesel | $6.13 | $68.55 | $137.10 |
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 Montana · Oct 13, 2026