How far is Libby, MT from Miles City, MT?
The driving distance from Libby, MT to Miles City, MT is about 632.9 miles (1018.6 km), with a travel time of about 10h 49m by car.
- The straight-line flight distance is about 474.2 miles (763.1 km).
- For a round trip, plan for roughly 21h 38m 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 10h 49m.
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.
Town in Jefferson County, Montana
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Libby and Miles City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Libby and Miles City.
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1
Start on West 9th Street
2100 ft · 1 min · West 9th Street
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2
Continue on Minnesota Avenue
85.3 mi · 1 hr 35 min · Minnesota Avenue
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3
Enter the roundabout and take exit 2 toward West Idaho Street
31 m · 2 sec · West Idaho Street
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4
Exit the roundabout onto West Idaho Street
1.5 mi · 2 min · West Idaho Street
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5
Take the exit right toward US 93 ALT
1807 ft · 50 sec
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6
Merge slight left onto Kalispell Bypass
2.4 mi · 3 min · Kalispell Bypass
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7
Enter the roundabout and take exit 2 toward Kalispell Bypass
49 m · 2 sec · Kalispell Bypass
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8
Exit the roundabout onto Kalispell Bypass
1.6 km · 1 min · Kalispell Bypass
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9
Enter the roundabout and take exit 1 toward Kalispell Bypass
47 m · 2 sec · Kalispell Bypass
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10
Exit the roundabout onto Kalispell Bypass
1303 ft · 29 sec · Kalispell Bypass
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11
Turn right onto US 93 South
1967 ft · 32 sec · US 93 South
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12
Turn left onto Snowline Lane
1.6 km · 4 min · Snowline Lane
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13
Turn right onto Demersville Road
1311 ft · 59 sec · Demersville Road
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14
At the end of the road, turn right onto Rocky Cliff Drive
89 m · 20 sec · Rocky Cliff Drive
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15
Turn left onto US 93 South
3.6 mi · 4 min · US 93 South
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16
Turn left
6.9 mi · 9 min
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17
Turn right
1821 ft · 37 sec
-
18
Turn left
91.1 mi · 1 hr 44 min
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19
Turn left
23.8 mi · 26 min
-
20
Turn right onto State Highway 141
32.5 mi · 35 min · State Highway 141
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21
Turn sharp right
12.9 mi · 14 min
-
22
Turn left
1 km · 56 sec
-
23
Take the ramp straight
1.4 km · 2 min
-
24
Merge slight left
45 mi · 42 min
-
25
Keep slight right
110.8 mi · 1 hr 51 min
-
26
Continue straight
6.9 mi · 6 min
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27
Continue straight
113 mi · 1 hr 53 min
-
28
Continue straight
3.1 mi · 4 min
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29
Keep slight left to continue on I 94 East: Bismark
134.7 mi · 2 hr 20 min
-
30
Take the exit slight right toward I 94 Business: Miles City, Jordan
3.6 mi · 6 min
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31
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Libby and Miles City.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 94 East
Keep slight left to continue on I 94 East: Bismark
135 mi · 02h 20m
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.
Showers And Thunderstorms leaving Libby and Mostly Sunny near Miles City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Libby to Miles City?
The road trip is about 632.9 miles (1018.6 km) and usually takes 10h 49m 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?
Whitehall is a useful midpoint, sitting about 340.7 miles from Libby and 292.2 miles from Miles City.
How much longer is the road route than the straight-line distance?
The direct path is about 474.2 miles (763.1 km), while the road route adds roughly 158.7 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 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 $86.93 one way or $173.86 round trip. Estimated CO2 is about 198.4 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Libby and Mostly Sunny near Miles City.
Stop Ideas Near Whitehall
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 Whitehall.
Butte, MT
Bozeman, MT
Flight Path Map
This map shows the direct air route between Libby and Miles City. Straight-line distance: 474.15 mi (763.07 km).
#1 Libby
City in Montana, United States
| Population | 2,845 |
| Coordinates | 48.3882900, -115.5560000 |
| Altitude | 639 |
| Country | United States |
#2 Miles City
City in Custer County, Montana
| Population | 8,264 |
| Coordinates | 46.4083400, -105.8405600 |
| Altitude | 722 |
| Country | United States |
End: Main Street (-105.84056, 46.408351)
Estimated Travel Time
Distance: 1019 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 21h 05m |
| 40 mph (64.37 km/h) | 15h 49m |
| 50 mph (80.47 km/h) | 12h 39m |
| 60 mph (96.56 km/h) | 10h 32m |
| 70 mph (112.65 km/h) | 09h 02m |
| 80 mph (129 km/h) | 07h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $86.93 | $173.86 |
| Mid-grade | $4.23 | $94.48 | $188.96 |
| Premium | $4.55 | $101.58 | $203.16 |
| Diesel | $5.41 | $120.85 | $241.70 |
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 · Apr 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.