How far is Fort Benton, MT from Great Falls, MT?
The driving distance from Fort Benton, MT to Great Falls, MT is about 41.3 miles (66.5 km), with a travel time of about 00h 46m by car.
- The straight-line flight distance is about 36.8 miles (59.2 km).
- For a round trip, plan for roughly 01h 33m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 00h 46m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Mostly Sunny then Chance Light Snow
Chance Light Snow
Driving Route Map
The map below follows the saved road route between Fort Benton and Great Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fort Benton and Great Falls.
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1
Start on the route
24 m · 6 sec
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2
Turn right
59 m · 19 sec
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3
Turn left onto Main Street
1237 ft · 54 sec · Main Street
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4
Turn right onto 12th Street
1366 ft · 1 min · 12th Street
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5
Turn left onto Saint Charles Street
117 m · 11 sec · Saint Charles Street
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6
Continue on MT 386
1.4 mi · 3 min · MT 386
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7
Turn left onto US 87
35.7 mi · 38 min · US 87
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8
Continue on 15th Street Northeast
91 m · 6 sec · 15th Street Northeast
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9
Turn right onto Old Havre Highway
1.4 km · 60 sec · Old Havre Highway
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10
Continue on 10th Street Northeast
906 ft · 20 sec · 10th Street Northeast
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11
Continue on 9th Street North
1 mi · 2 min · 9th Street North
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12
Turn right onto 2nd Avenue North
1731 ft · 39 sec · 2nd Avenue North
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13
Turn left onto 5th Street North
2424 ft · 44 sec · 5th Street North
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14
Turn right onto 4th Avenue South
131 m · 24 sec · 4th Avenue South
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15
Turn left onto 4th Street South
70 m · 10 sec · 4th Street South
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16
Arrive at your destination
0 m · 1 sec · 4th Street South
Car Route Details
A richer read on the saved driving route between Fort Benton and Great Falls.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 87
Turn left onto US 87
35.7 mi · 00h 38m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny then Chance Light Snow leaving Fort Benton and Chance Light Snow near Great Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fort Benton to Great Falls?
The road trip is about 41.3 miles (66.5 km) and usually takes 00h 46m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Belt is a useful midpoint, sitting about 20.3 miles from Fort Benton and 20.9 miles from Great Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 36.8 miles (59.2 km), while the road route adds roughly 4.5 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 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 4:56 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.68 one way or $11.37 round trip. Estimated CO2 is about 13 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Light Snow around Fort Benton and Chance Light Snow near Great Falls.
Flight Path Map
This map shows the direct air route between Fort Benton and Great Falls. Straight-line distance: 36.77 mi (59.17 km).
#1 Fort Benton
City in Montana, USA
| Population | 1,442 |
| Coordinates | 47.8183000, -110.6674400 |
| Altitude | 799 |
| Country | United States |
#2 Great Falls
Town in Cascade County, Montana, United States
| Population | 58,353 |
| Coordinates | 47.5002400, -111.3008100 |
| Altitude | 1015 |
| Country | United States |
End: 4th Street South (-111.300848, 47.50024)
Estimated Travel Time
Distance: 66 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 22m |
| 40 mph (64.37 km/h) | 01h 01m |
| 50 mph (80.47 km/h) | 00h 49m |
| 60 mph (96.56 km/h) | 00h 41m |
| 70 mph (112.65 km/h) | 00h 35m |
| 80 mph (129 km/h) | 00h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $5.68 | $11.37 |
| Mid-grade | $4.23 | $6.18 | $12.35 |
| Premium | $4.55 | $6.64 | $13.28 |
| Diesel | $5.41 | $7.90 | $15.80 |
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.