How far is Butte, MT from Lewistown, MT?
The driving distance from Butte, MT to Lewistown, MT is about 239.2 miles (385 km), with a travel time of about 04h 08m by car.
- The straight-line flight distance is about 164.8 miles (265.2 km).
- For a round trip, plan for roughly 08h 17m 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 04h 08m.
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 in Cascade County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Light Snow
Driving Route Map
The map below follows the saved road route between Butte and Lewistown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Butte and Lewistown.
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1
Start on West Iron Street
21 m · 5 sec · West Iron Street
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2
Turn right onto South Main Street
2042 ft · 45 sec · South Main Street
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3
Turn right onto West Front Street
1321 ft · 29 sec · West Front Street
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4
Turn left onto South Montana Street
2287 ft · 46 sec · South Montana Street
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5
Turn left onto La Salle Street
89 m · 5 sec · La Salle Street
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6
Take the ramp straight
972 ft · 24 sec
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7
Merge slight left
2.5 mi · 3 min
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8
Take the exit slight right toward I 15 North: Helena
148.8 mi · 2 hr 25 min
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9
Take the exit slight right toward I 15 Business, US 89 South, MT 200 East
2016 ft · 49 sec
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10
Continue on Country Club Boulevard
1.4 mi · 2 min · Country Club Boulevard
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11
Continue on 10th Avenue South
6.5 mi · 9 min · 10th Avenue South
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12
Continue straight
17.6 mi · 19 min
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13
Enter the roundabout and take exit 2 toward the route
68 m · 3 sec
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14
Exit the roundabout
1606 ft · 21 sec
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15
Turn straight
64.3 mi · 1 hr 10 min
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16
Continue straight
14.7 mi · 16 min
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17
Continue on US Highway 87
1.5 mi · 2 min · US Highway 87
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18
Continue on West Main Street
1.3 km · 2 min · West Main Street
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19
Turn right onto 6th Avenue South
121 m · 17 sec · 6th Avenue South
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20
Arrive at your destination
0 m · 1 sec · 6th Avenue South
Car Route Details
A richer read on the saved driving route between Butte and Lewistown.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 15 North
Take the exit slight right toward I 15 North: Helena
149 mi · 02h 25m
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.
Partly Sunny leaving Butte and Chance Light Snow near Lewistown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Butte to Lewistown?
The road trip is about 239.2 miles (385 km) and usually takes 04h 08m 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?
Cascade is a useful midpoint, sitting about 129.9 miles from Butte and 109.4 miles from Lewistown.
How much longer is the road route than the straight-line distance?
The direct path is about 164.8 miles (265.2 km), while the road route adds roughly 74.4 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 8:42 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.86 one way or $65.71 round trip. Estimated CO2 is about 75 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Butte and Chance Light Snow near Lewistown.
Flight Path Map
This map shows the direct air route between Butte and Lewistown. Straight-line distance: 164.76 mi (265.16 km).
#1 Butte
Consolidated city-county in Montana, United States
| Population | 34,190 |
| Coordinates | 46.0038200, -112.5347400 |
| Altitude | 1688 |
| Country | United States |
#2 Lewistown
City in Montana, United States
| Population | 5,905 |
| Coordinates | 47.0624700, -109.4282400 |
| Altitude | 1203 |
| Country | United States |
End: 6th Avenue South (-109.428026, 47.06261)
Estimated Travel Time
Distance: 385 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 58m |
| 40 mph (64.37 km/h) | 05h 58m |
| 50 mph (80.47 km/h) | 04h 47m |
| 60 mph (96.56 km/h) | 03h 59m |
| 70 mph (112.65 km/h) | 03h 25m |
| 80 mph (129 km/h) | 02h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $32.86 | $65.71 |
| Mid-grade | $4.23 | $35.71 | $71.42 |
| Premium | $4.55 | $38.39 | $76.79 |
| Diesel | $5.41 | $45.68 | $91.35 |
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 · May 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.