How far is Fort Belknap Agency, MT from Billings, MT?
The driving distance from Fort Belknap Agency, MT to Billings, MT is about 202.8 miles (326.4 km), with a travel time of about 03h 35m by car.
- The straight-line flight distance is about 186.9 miles (300.8 km).
- For a round trip, plan for roughly 07h 10m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 03h 35m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Fort Belknap Agency and Billings.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fort Belknap Agency and Billings.
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1
Start on 1st Street
2265 ft · 2 min · 1st Street
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2
At the end of the road, turn right
1584 ft · 22 sec
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3
Turn right
50 mi · 1 hr 14 min
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4
Turn right
35.8 mi · 53 min
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5
Continue straight
21.5 mi · 32 min
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6
Continue straight
45.1 mi · 1 hr 4 min
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7
Turn right onto 1st Avenue West
44.4 mi · 49 min · 1st Avenue West
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8
Continue on Roundup Road
80 m · 6 sec · Roundup Road
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9
Turn right onto Main Street
3.5 mi · 6 min · Main Street
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10
Turn straight onto 1st Avenue North
1.2 mi · 3 min · 1st Avenue North
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11
Turn left onto North 25th Street
114 m · 16 sec · North 25th Street
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12
Turn left onto Montana Avenue
51 m · 6 sec · Montana Avenue
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13
Arrive at your destination
0 m · 1 sec · Montana Avenue
Car Route Details
A richer read on the saved driving route between Fort Belknap Agency and Billings.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Longest stretch
Turn right
50 mi · 01h 14m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Fort Belknap Agency and Mostly Sunny near Billings.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fort Belknap Agency to Billings?
The road trip is about 202.8 miles (326.4 km) and usually takes 03h 35m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Grass Range is a useful midpoint, sitting about 101.2 miles from Fort Belknap Agency and 101.7 miles from Billings.
How much longer is the road route than the straight-line distance?
The direct path is about 186.9 miles (300.8 km), while the road route adds roughly 15.9 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 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 9:50 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.87 one way or $55.75 round trip. Estimated CO2 is about 63.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Fort Belknap Agency and Mostly Sunny near Billings.
Flight Path Map
This map shows the direct air route between Fort Belknap Agency and Billings. Straight-line distance: 186.91 mi (300.81 km).
#1 Fort Belknap Agency
Census designated place
| Population | 1,293 |
| Coordinates | 48.4825000, -108.7654400 |
| Altitude | 724 |
| Country | United States |
#2 Billings
The most populous city in Montana.
| Population | 117,445 |
| Coordinates | 45.7832900, -108.5006900 |
| Altitude | 952 |
| Country | United States |
End: Montana Avenue (-108.500696, 45.783296)
Estimated Travel Time
Distance: 326 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 45m |
| 40 mph (64.37 km/h) | 05h 04m |
| 50 mph (80.47 km/h) | 04h 03m |
| 60 mph (96.56 km/h) | 03h 22m |
| 70 mph (112.65 km/h) | 02h 53m |
| 80 mph (129 km/h) | 02h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $27.87 | $55.75 |
| Mid-grade | $4.23 | $30.29 | $60.59 |
| Premium | $4.55 | $32.57 | $65.14 |
| Diesel | $5.41 | $38.75 | $77.50 |
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 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.