How far is Great Falls, MT from Three Forks, MT?
The driving distance from Great Falls, MT to Three Forks, MT is about 25.2 miles (40.6 km), with a travel time of about 01h 05m by car.
- The straight-line flight distance is about 18 miles (29 km).
- For a round trip, plan for roughly 02h 10m 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 01h 05m.
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.
Slight Chance Light Snow then Partly Sunny
Driving Route Map
The map below follows the saved road route between Great Falls and Three Forks.
Turn-by-Turn Driving Directions
Step-by-step road directions between Great Falls and Three Forks.
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1
Start on 4th Street South
49 m · 12 sec · 4th Street South
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2
Turn left onto 5th Avenue South
130 m · 21 sec · 5th Avenue South
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3
Turn right onto 5th Street South
1988 ft · 36 sec · 5th Street South
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4
Turn left onto 10th Avenue South
5.7 mi · 8 min · 10th Avenue South
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5
Continue straight
1.2 mi · 1 min
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6
Turn right onto Stockett Road
9.5 mi · 23 min · Stockett Road
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7
Turn left onto Cottonwood Coulee Road
4.1 mi · 16 min · Cottonwood Coulee Road
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8
Continue on Cottonwood Coulee Road
1.8 mi · 7 min · Cottonwood Coulee Road
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9
Continue on Cottonwood Coulee Road
2.4 mi · 9 min · Cottonwood Coulee Road
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10
Arrive at your destination
0 m · 1 sec · Cottonwood Coulee Road
Car Route Details
A richer read on the saved driving route between Great Falls and Three Forks.
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.
Stockett Road
Turn right onto Stockett Road
9.51 mi · 00h 23m
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.
Partly Sunny leaving Great Falls and Slight Chance Light Snow then Partly Sunny near Three Forks.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Great Falls to Three Forks?
The road trip is about 25.2 miles (40.6 km) and usually takes 01h 05m 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 12.6 miles from Great Falls and 12.6 miles from Three Forks.
How much longer is the road route than the straight-line distance?
The direct path is about 18 miles (29 km), while the road route adds roughly 7.2 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 4:20 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.46 one way or $6.93 round trip. Estimated CO2 is about 7.9 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Great Falls and Slight Chance Light Snow then Partly Sunny near Three Forks.
Stop Ideas Near Belt
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Statue of Liberty Replica
Great Falls City Attorney's Office
Cascade County Treasurer
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Belt.
Flight Path Map
This map shows the direct air route between Great Falls and Three Forks. Straight-line distance: 18.03 mi (29.02 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 Three Forks
City in Cascade County, Montana, United States
| Population | 2,043 |
| Coordinates | 47.2816300, -111.0902400 |
| Altitude | 1208 |
| Country | United States |
End: Three Forks (-111.09024, 47.28163)
Estimated Travel Time
Distance: 41 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 50m |
| 40 mph (64.37 km/h) | 00h 37m |
| 50 mph (80.47 km/h) | 00h 30m |
| 60 mph (96.56 km/h) | 00h 25m |
| 70 mph (112.65 km/h) | 00h 21m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $3.46 | $6.93 |
| Mid-grade | $4.23 | $3.77 | $7.53 |
| Premium | $4.55 | $4.05 | $8.10 |
| Diesel | $5.41 | $4.82 | $9.63 |
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.