How far is Billings, MT from Three Forks, MT?
The driving distance from Billings, MT to Three Forks, MT is about 172.6 miles (277.7 km), with a travel time of about 02h 56m by car.
- The straight-line flight distance is about 147.1 miles (236.7 km).
- For a round trip, plan for roughly 05h 53m 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 02h 56m.
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.
City in and county seat of Sweet Grass County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Billings and Three Forks.
Turn-by-Turn Driving Directions
Step-by-step road directions between Billings and Three Forks.
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1
Start on Montana Avenue
589 ft · 25 sec · Montana Avenue
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2
Turn left onto North 23rd Street
114 m · 22 sec · North 23rd Street
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3
Turn left onto 1st Avenue North
1.5 km · 3 min · 1st Avenue North
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4
Turn left onto Division Street
136 m · 10 sec · Division Street
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5
Continue on Montana Avenue
1.3 mi · 2 min · Montana Avenue
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6
Continue on Laurel Road
1.4 mi · 2 min · Laurel Road
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7
Keep slight right to continue on Butte, I 90 West
1963 ft · 48 sec
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8
Merge slight right
105.4 mi · 1 hr 43 min
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9
Continue straight
7 mi · 7 min
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10
Continue straight
54.2 mi · 55 min
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11
Take the exit slight right toward MT 2, MT 205: Three Forks
1267 ft · 37 sec
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12
Turn left onto Frontage Road
1.1 mi · 2 min · Frontage Road
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13
Continue on North Main Street
1155 ft · 20 sec · North Main Street
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14
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Billings and Three Forks.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Butte
Merge slight right
105 mi · 01h 43m
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 Billings and Mostly Sunny then Chance Showers And Thunderstorms near Three Forks.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Billings to Three Forks?
The road trip is about 172.6 miles (277.7 km) and usually takes 02h 56m 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?
Big Timber is a useful midpoint, sitting about 86.1 miles from Billings and 86.4 miles from Three Forks.
How much longer is the road route than the straight-line distance?
The direct path is about 147.1 miles (236.7 km), while the road route adds roughly 25.5 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 12:36 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.71 one way or $47.42 round trip. Estimated CO2 is about 54.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Billings and Mostly Sunny then Chance Showers And Thunderstorms near Three Forks.
Stop Ideas Near Big Timber
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 Big Timber.
Livingston, MT
Bozeman, MT
Billings, MT
Flight Path Map
This map shows the direct air route between Billings and Three Forks. Straight-line distance: 147.07 mi (236.69 km).
#1 Billings
The most populous city in Montana.
| Population | 117,445 |
| Coordinates | 45.7832900, -108.5006900 |
| Altitude | 952 |
| Country | United States |
#2 Three Forks
City in Gallatin County, Montana, United States
| Population | 1,926 |
| Coordinates | 45.8924300, -111.5521900 |
| Altitude | 1242 |
| Country | United States |
End: Three Forks (-111.55219, 45.89243)
Estimated Travel Time
Distance: 278 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 44m |
| 40 mph (64.37 km/h) | 04h 18m |
| 50 mph (80.47 km/h) | 03h 27m |
| 60 mph (96.56 km/h) | 02h 52m |
| 70 mph (112.65 km/h) | 02h 27m |
| 80 mph (129 km/h) | 02h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $23.71 | $47.42 |
| Mid-grade | $4.23 | $25.77 | $51.53 |
| Premium | $4.55 | $27.70 | $55.41 |
| Diesel | $5.41 | $32.96 | $65.92 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.