How far is Great Falls, MT from Fort Benton, MT?
The driving distance from Great Falls, MT to Fort Benton, MT is about 40.8 miles (65.6 km), with a travel time of about 00h 49m by car.
- The straight-line flight distance is about 36.8 miles (59.2 km).
- For a round trip, plan for roughly 01h 38m 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 49m.
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 Showers And Thunderstorms
Partly Sunny then Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Great Falls and Fort Benton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Great Falls and Fort Benton.
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1
Start on 4th Street South
70 m · 12 sec · 4th Street South
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2
Turn right onto 4th Avenue South
858 ft · 43 sec · 4th Avenue South
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3
Turn left onto 6th Street South
2019 ft · 36 sec · 6th Street South
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4
Turn right onto 1st Avenue North
1296 ft · 33 sec · 1st Avenue North
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5
Turn left onto 9th Street North
1.1 mi · 2 min · 9th Street North
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6
Continue on 10th Street Northeast
870 ft · 19 sec · 10th Street Northeast
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7
Continue on Old Havre Highway
1.4 km · 58 sec · Old Havre Highway
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8
Turn left onto 15th Street Northeast
35.8 mi · 38 min · 15th Street Northeast
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9
Turn right onto MT 386
1.4 mi · 3 min · MT 386
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10
Continue on Saint Charles Street
117 m · 13 sec · Saint Charles Street
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11
Turn right onto 12th Street
1366 ft · 1 min · 12th Street
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12
Turn left onto Main Street
1237 ft · 55 sec · Main Street
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13
Turn right
83 m · 21 sec
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14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Great Falls and Fort Benton.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
15th Street Northeast
Turn left onto 15th Street Northeast
35.8 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 Showers And Thunderstorms leaving Great Falls and Partly Sunny then Chance Rain Showers near Fort Benton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Great Falls to Fort Benton?
The road trip is about 40.8 miles (65.6 km) and usually takes 00h 49m 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 Great Falls and 20.4 miles from Fort Benton.
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 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 4:52 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.61 one way or $11.21 round trip. Estimated CO2 is about 12.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Great Falls and Partly Sunny then Chance Rain Showers near Fort Benton.
Flight Path Map
This map shows the direct air route between Great Falls and Fort Benton. Straight-line distance: 36.77 mi (59.17 km).
#1 Great Falls
Town in Cascade County, Montana, United States
| Population | 58,353 |
| Coordinates | 47.5002400, -111.3008100 |
| Altitude | 1015 |
| Country | United States |
#2 Fort Benton
City in Montana, USA
| Population | 1,442 |
| Coordinates | 47.8183000, -110.6674400 |
| Altitude | 799 |
| Country | United States |
End: Fort Benton (-110.66744, 47.8183)
Estimated Travel Time
Distance: 66 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 21m |
| 40 mph (64.37 km/h) | 01h 01m |
| 50 mph (80.47 km/h) | 00h 48m |
| 60 mph (96.56 km/h) | 00h 40m |
| 70 mph (112.65 km/h) | 00h 34m |
| 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 | $5.61 | $11.21 |
| Mid-grade | $4.23 | $6.09 | $12.19 |
| Premium | $4.55 | $6.55 | $13.10 |
| Diesel | $5.41 | $7.79 | $15.59 |
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 11, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.