How far is Helena, MT from Fort Belknap Agency, MT?
The driving distance from Helena, MT to Fort Belknap Agency, MT is about 250 miles (402.3 km), with a travel time of about 04h 30m by car.
- The straight-line flight distance is about 200.8 miles (323.1 km).
- For a round trip, plan for roughly 09h 01m 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 04h 30m.
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.
City in Montana, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Helena and Fort Belknap Agency.
Turn-by-Turn Driving Directions
Step-by-step road directions between Helena and Fort Belknap Agency.
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1
Start on Cruse Avenue
31 m · 6 sec · Cruse Avenue
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2
Turn slight right onto North Last Chance Gulch Street
1.1 mi · 3 min · North Last Chance Gulch Street
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3
Keep slight right to continue on North Last Chance Gulch Street
677 ft · 18 sec · North Last Chance Gulch Street
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4
Continue on Cedar Street
1.2 km · 2 min · Cedar Street
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5
Take the ramp slight right toward I 15 North: Great Falls
1119 ft · 27 sec
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6
Merge slight left onto First Special Service Force Memorial Highway
86.7 mi · 1 hr 24 min · First Special Service Force Memorial Highway
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7
Take the exit slight right
1262 ft · 31 sec
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8
Keep slight right
70 m · 6 sec
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9
Merge slight left onto Central Avenue West
1.2 mi · 1 min · Central Avenue West
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10
Turn left onto 3rd Street Northwest
1.4 mi · 2 min · 3rd Street Northwest
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11
Continue on Smelter Avenue Northeast
2885 ft · 45 sec · Smelter Avenue Northeast
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12
Turn left onto Old Havre Highway
1.4 km · 1 min · Old Havre Highway
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13
Turn left onto 15th Street Northeast
107.3 mi · 1 hr 58 min · 15th Street Northeast
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14
Turn right
3.9 mi · 5 min
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15
Continue straight
45.2 mi · 51 min
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16
Turn right
582 ft · 26 sec
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17
Continue on 1st
1684 ft · 1 min · 1st
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18
Arrive at your destination
0 m · 1 sec · 1st Street
Car Route Details
A richer read on the saved driving route between Helena and Fort Belknap Agency.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
15th Street Northeast
Turn left onto 15th Street Northeast
107 mi · 01h 58m
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.
Mostly Sunny leaving Helena and Sunny near Fort Belknap Agency.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Helena to Fort Belknap Agency?
The road trip is about 250 miles (402.3 km) and usually takes 04h 30m 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?
Fort Benton is a useful midpoint, sitting about 124.8 miles from Helena and 125.2 miles from Fort Belknap Agency.
How much longer is the road route than the straight-line distance?
The direct path is about 200.8 miles (323.1 km), while the road route adds roughly 49.2 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 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 7:58 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $34.34 one way or $68.67 round trip. Estimated CO2 is about 78.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Helena and Sunny near Fort Belknap Agency.
Stop Ideas Near Fort Benton
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 Fort Benton.
Havre station
Shelby
Flight Path Map
This map shows the direct air route between Helena and Fort Belknap Agency. Straight-line distance: 200.78 mi (323.12 km).
#1 Helena
State capital of Montana, United States and seat of Lewis and Clark County
| Population | 33,737 |
| Coordinates | 46.5927100, -112.0361100 |
| Altitude | 1237 |
| Country | United States |
#2 Fort Belknap Agency
Census designated place
| Population | 1,293 |
| Coordinates | 48.4825000, -108.7654400 |
| Altitude | 724 |
| Country | United States |
End: Fort Belknap Agency (-108.76544, 48.4825)
Estimated Travel Time
Distance: 402 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 19m |
| 40 mph (64.37 km/h) | 06h 15m |
| 50 mph (80.47 km/h) | 04h 59m |
| 60 mph (96.56 km/h) | 04h 10m |
| 70 mph (112.65 km/h) | 03h 34m |
| 80 mph (129 km/h) | 03h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $34.34 | $68.67 |
| Mid-grade | $4.23 | $37.32 | $74.63 |
| Premium | $4.55 | $40.12 | $80.24 |
| Diesel | $5.41 | $47.73 | $95.47 |
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.