How far is Big Sky, MT from Havre, MT?
The driving distance from Big Sky, MT to Havre, MT is about 336.5 miles (541.6 km), with a travel time of about 05h 49m by car.
- The straight-line flight distance is about 239.2 miles (384.9 km).
- For a round trip, plan for roughly 11h 38m 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 49m.
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 in Cascade County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain And Snow then Snow Showers Likely
Partly Sunny then Chance Light Rain
Driving Route Map
The map below follows the saved road route between Big Sky and Havre.
Turn-by-Turn Driving Directions
Step-by-step road directions between Big Sky and Havre.
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1
Start on Access
714 ft · 33 sec · Access
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2
Turn right onto Lone Mountain Trail
7.1 mi · 11 min · Lone Mountain Trail
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3
At the end of the road, turn left onto Gallatin Road
33.9 mi · 41 min · Gallatin Road
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4
Continue on Jackrabbit Lane
6.8 mi · 8 min · Jackrabbit Lane
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5
Turn left
1147 ft · 30 sec
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6
Merge slight left
23 mi · 23 min
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7
Take the exit slight right toward US 287: Helena, Ennis
1498 ft · 37 sec
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8
Turn right onto Highway 287
62.2 mi · 1 hr 11 min · Highway 287
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9
Take the exit slight right toward I 15 North: Great Falls
1958 ft · 48 sec
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10
Merge slight left onto First Special Service Force Memorial Highway
87.6 mi · 1 hr 25 min · First Special Service Force Memorial Highway
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11
Take the exit slight right
1262 ft · 31 sec
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12
Keep slight right
70 m · 6 sec
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13
Merge slight left onto Central Avenue West
1.2 mi · 1 min · Central Avenue West
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14
Turn left onto 3rd Street Northwest
1.4 mi · 2 min · 3rd Street Northwest
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15
Continue on Smelter Avenue Northeast
2885 ft · 45 sec · Smelter Avenue Northeast
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16
Turn left onto Old Havre Highway
1.4 km · 1 min · Old Havre Highway
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17
Turn left onto 15th Street Northeast
107.3 mi · 1 hr 58 min · 15th Street Northeast
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18
Turn right
3 mi · 4 min
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19
Turn right onto 1st Avenue
1661 ft · 1 min · 1st Avenue
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20
Turn right onto 5th Street
128 m · 20 sec · 5th Street
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21
Turn right onto Montana Avenue
49 m · 7 sec · Montana Avenue
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22
Arrive at your destination
0 m · 1 sec · Montana Avenue
Car Route Details
A richer read on the saved driving route between Big Sky and Havre.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
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.
Chance Rain And Snow then Snow Showers Likely leaving Big Sky and Partly Sunny then Chance Light Rain near Havre.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Big Sky to Havre?
The road trip is about 336.5 miles (541.6 km) and usually takes 05h 49m 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?
Cascade is a useful midpoint, sitting about 168.1 miles from Big Sky and 168.4 miles from Havre.
How much longer is the road route than the straight-line distance?
The direct path is about 239.2 miles (384.9 km), while the road route adds roughly 97.3 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 5:22 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $46.21 one way or $92.42 round trip. Estimated CO2 is about 105.5 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain And Snow then Snow Showers Likely around Big Sky and Partly Sunny then Chance Light Rain near Havre.
Flight Path Map
This map shows the direct air route between Big Sky and Havre. Straight-line distance: 239.19 mi (384.94 km).
#1 Big Sky
Census designated place
| Population | 2,308 |
| Coordinates | 45.2846500, -111.3682900 |
| Altitude | 2200 |
| Country | United States |
#2 Havre
City in Hill County, Montana, United States
| Population | 9,706 |
| Coordinates | 48.5500000, -109.6840900 |
| Altitude | 771 |
| Country | United States |
End: Montana Avenue (-109.683848, 48.549988)
Estimated Travel Time
Distance: 542 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 12m |
| 40 mph (64.37 km/h) | 08h 24m |
| 50 mph (80.47 km/h) | 06h 43m |
| 60 mph (96.56 km/h) | 05h 36m |
| 70 mph (112.65 km/h) | 04h 48m |
| 80 mph (129 km/h) | 04h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $46.21 | $92.42 |
| Mid-grade | $4.23 | $50.22 | $100.44 |
| Premium | $4.55 | $54.00 | $107.99 |
| Diesel | $5.41 | $64.24 | $128.48 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.