How far is Havre, MT from Boulder, MT?
The driving distance from Havre, MT to Boulder, MT is about 231.2 miles (372 km), with a travel time of about 04h 02m by car.
- The straight-line flight distance is about 196.3 miles (315.9 km).
- For a round trip, plan for roughly 08h 05m 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 02m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
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.
Sunny
Driving Route Map
The map below follows the saved road route between Havre and Boulder.
Turn-by-Turn Driving Directions
Step-by-step road directions between Havre and Boulder.
-
1
Start on Montana Avenue
49 m · 12 sec · Montana Avenue
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2
Turn left onto 5th Street
791 ft · 40 sec · 5th Street
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3
Turn left onto 2nd Avenue
1663 ft · 1 min · 2nd Avenue
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4
Turn left onto 1st Street
3.1 mi · 4 min · 1st Street
-
5
Turn left
107.3 mi · 1 hr 58 min
-
6
Continue on 15th Street Northeast
91 m · 6 sec · 15th Street Northeast
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7
Turn right onto Old Havre Highway
1.4 km · 1 min · Old Havre Highway
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8
Turn right onto Smelter Avenue Northeast
2860 ft · 43 sec · Smelter Avenue Northeast
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9
Turn straight onto 3rd Street Northwest
1.4 mi · 2 min · 3rd Street Northwest
-
10
Turn right onto Central Avenue West
1.3 mi · 2 min · Central Avenue West
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11
Turn sharp left
1425 ft · 35 sec
-
12
Merge slight left onto First Special Service Force Memorial Highway
114.7 mi · 1 hr 50 min · First Special Service Force Memorial Highway
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13
Take the exit slight right toward MT 69: Boulder
1242 ft · 37 sec
-
14
Turn left
1.3 km · 1 min
-
15
Turn right onto West Centennial Avenue
112 m · 16 sec · West Centennial Avenue
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16
Arrive at your destination
0 m · 1 sec · West Centennial Avenue
Car Route Details
A richer read on the saved driving route between Havre and Boulder.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
First Special Service Force Memorial Highway
Merge slight left onto First Special Service Force Memorial Highway
115 mi · 01h 50m
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 Havre and Sunny near Boulder.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Havre to Boulder?
The road trip is about 231.2 miles (372 km) and usually takes 04h 02m 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?
Great Falls is a useful midpoint, sitting about 115.5 miles from Havre and 115.7 miles from Boulder.
How much longer is the road route than the straight-line distance?
The direct path is about 196.3 miles (315.9 km), while the road route adds roughly 34.9 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 8:54 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.73 one way or $63.46 round trip. Estimated CO2 is about 72.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Havre and Sunny near Boulder.
Stop Ideas Near Great Falls
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Statue of Liberty Replica
Great Falls City Attorney's Office
Cascade County Treasurer
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Great Falls.
Shelby
Flight Path Map
This map shows the direct air route between Havre and Boulder. Straight-line distance: 196.29 mi (315.9 km).
#1 Havre
City in Hill County, Montana, United States
| Population | 9,706 |
| Coordinates | 48.5500000, -109.6840900 |
| Altitude | 771 |
| Country | United States |
#2 Boulder
Town in Montana
| Population | 1,291 |
| Coordinates | 46.2365900, -112.1208300 |
| Altitude | 1496 |
| Country | United States |
End: Boulder (-112.12083, 46.23659)
Estimated Travel Time
Distance: 372 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 42m |
| 40 mph (64.37 km/h) | 05h 46m |
| 50 mph (80.47 km/h) | 04h 37m |
| 60 mph (96.56 km/h) | 03h 51m |
| 70 mph (112.65 km/h) | 03h 18m |
| 80 mph (129 km/h) | 02h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $31.73 | $63.46 |
| Mid-grade | $4.23 | $34.48 | $68.97 |
| Premium | $4.55 | $37.07 | $74.15 |
| Diesel | $5.41 | $44.11 | $88.22 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.