How far is Helena, MT from Crow Agency, MT?
The driving distance from Helena, MT to Crow Agency, MT is about 298.4 miles (480.3 km), with a travel time of about 05h 09m by car.
- The straight-line flight distance is about 229.6 miles (369.5 km).
- For a round trip, plan for roughly 10h 18m 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 05h 09m.
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 and county seat of Sweet Grass County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Helena and Crow Agency.
Turn-by-Turn Driving Directions
Step-by-step road directions between Helena and Crow Agency.
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1
Start on Cruse Avenue
50 m · 8 sec · Cruse Avenue
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2
Turn left onto 11th Avenue
1.4 mi · 4 min · 11th Avenue
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3
Turn straight onto Prospect Avenue
1.3 mi · 2 min · Prospect Avenue
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4
Continue straight
3.6 mi · 5 min
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5
Continue straight
1678 ft · 26 sec
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6
Continue straight
30.2 mi · 34 min
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7
Continue straight
2.3 mi · 2 min
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8
Continue straight
1.2 mi · 1 min
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9
Continue straight
1.4 mi · 2 min
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10
Continue straight
22.7 mi · 24 min
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11
Take the exit left toward I 90 East: Billings
1372 ft · 34 sec
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12
Merge slight left
180.8 mi · 3 hr 2 min
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13
Keep slight right to continue on I 90 East: Sheridan
52.4 mi · 49 min
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14
Take the exit slight right toward Crow Agency, Baaxuwuaashe
1682 ft · 46 sec
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15
Turn left
574 ft · 18 sec
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16
Arrive at your destination
0 m · 1 sec · Makawasha Avenue
Car Route Details
A richer read on the saved driving route between Helena and Crow Agency.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 90 East
Merge slight left
181 mi · 03h 02m
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.
Partly Sunny leaving Helena and Chance Rain Showers near Crow Agency.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Helena to Crow Agency?
The road trip is about 298.4 miles (480.3 km) and usually takes 05h 09m 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?
Big Timber is a useful midpoint, sitting about 148.9 miles from Helena and 149.5 miles from Crow Agency.
How much longer is the road route than the straight-line distance?
The direct path is about 229.6 miles (369.5 km), while the road route adds roughly 68.8 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 6:42 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $40.99 one way or $81.99 round trip. Estimated CO2 is about 93.6 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Helena and Chance Rain Showers near Crow Agency.
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 Helena and Crow Agency. Straight-line distance: 229.6 mi (369.51 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 Crow Agency
Census designated place
| Population | 1,616 |
| Coordinates | 45.6016400, -107.4611900 |
| Altitude | 926 |
| Country | United States |
End: Crow Agency (-107.46119, 45.60164)
Estimated Travel Time
Distance: 480 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 56m |
| 40 mph (64.37 km/h) | 07h 27m |
| 50 mph (80.47 km/h) | 05h 58m |
| 60 mph (96.56 km/h) | 04h 58m |
| 70 mph (112.65 km/h) | 04h 15m |
| 80 mph (129 km/h) | 03h 43m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $40.99 | $81.99 |
| Mid-grade | $4.23 | $44.55 | $89.10 |
| Premium | $4.55 | $47.90 | $95.80 |
| Diesel | $5.41 | $56.99 | $113.98 |
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 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.