How far is Miles City, MT from Bigfork, MT?
The driving distance from Miles City, MT to Bigfork, MT is about 575.8 miles (926.7 km), with a travel time of about 10h 02m by car.
- The straight-line flight distance is about 402.5 miles (647.8 km).
- For a round trip, plan for roughly 20h 05m 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 02m.
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 Gallatin County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Miles City and Bigfork.
Turn-by-Turn Driving Directions
Step-by-step road directions between Miles City and Bigfork.
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1
Start on Main Street
1.1 mi · 2 min · Main Street
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2
Continue straight
1.9 mi · 3 min
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3
Take the ramp straight
20 m · 2 sec
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4
Keep slight right
1487 ft · 36 sec
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5
Merge slight left
135.4 mi · 2 hr 19 min
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6
Merge slight left
2.8 mi · 3 min
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7
Continue straight
112.8 mi · 1 hr 52 min
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8
Continue straight
7 mi · 7 min
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9
Continue straight
113.4 mi · 1 hr 54 min
-
10
Keep slight left to continue on I 90 West: Missoula
42.6 mi · 40 min
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11
Take the exit slight right toward US 12 East: Helena, Garrison
1.2 mi · 2 min
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12
At the end of the road, turn right
12.9 mi · 14 min
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13
Turn sharp left
32.5 mi · 35 min
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14
At the end of the road, turn left
23.8 mi · 26 min
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15
Turn right
82.6 mi · 1 hr 34 min
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16
Turn left
4.8 mi · 8 min
-
17
Turn right onto Bridge Street
889 ft · 32 sec · Bridge Street
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18
Continue on Bridge Street
1509 ft · 1 min · Bridge Street
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19
Turn right onto Electric Avenue
602 ft · 29 sec · Electric Avenue
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20
At the end of the road, turn right onto Grand Drive
93 m · 19 sec · Grand Drive
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21
Turn left onto Cascade Avenue
53 m · 8 sec · Cascade Avenue
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22
Arrive at your destination
0 m · 1 sec · Cascade Avenue
Car Route Details
A richer read on the saved driving route between Miles City and Bigfork.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Main Street
Merge slight left
135 mi · 02h 19m
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.
Sunny leaving Miles City and Mostly Sunny near Bigfork.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Miles City to Bigfork?
The road trip is about 575.8 miles (926.7 km) and usually takes 10h 02m 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?
Bozeman is a useful midpoint, sitting about 287.4 miles from Miles City and 288.4 miles from Bigfork.
How much longer is the road route than the straight-line distance?
The direct path is about 402.5 miles (647.8 km), while the road route adds roughly 173.3 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 $79.11 one way or $158.21 round trip. Estimated CO2 is about 180.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Miles City and Mostly Sunny near Bigfork.
Stop Ideas Near Bozeman
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 Bozeman.
Bozeman, MT
Livingston, MT
Flight Path Map
This map shows the direct air route between Miles City and Bigfork. Straight-line distance: 402.54 mi (647.82 km).
#1 Miles City
City in Custer County, Montana
| Population | 8,264 |
| Coordinates | 46.4083400, -105.8405600 |
| Altitude | 722 |
| Country | United States |
#2 Bigfork
City in Itasca County, Minnesota, United States of America
| Population | 4,270 |
| Coordinates | 48.0632900, -114.0726100 |
| Altitude | 908 |
| Country | United States |
End: Bigfork (-114.07261, 48.06329)
Estimated Travel Time
Distance: 927 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 19h 11m |
| 40 mph (64.37 km/h) | 14h 23m |
| 50 mph (80.47 km/h) | 11h 30m |
| 60 mph (96.56 km/h) | 09h 35m |
| 70 mph (112.65 km/h) | 08h 13m |
| 80 mph (129 km/h) | 07h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $79.11 | $158.21 |
| Mid-grade | $4.23 | $85.97 | $171.95 |
| Premium | $4.55 | $92.44 | $184.87 |
| Diesel | $5.41 | $109.97 | $219.94 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.