How far is West Yellowstone, MT from Helena, MT?
The driving distance from West Yellowstone, MT to Helena, MT is about 181.6 miles (292.3 km), with a travel time of about 03h 11m by car.
- The straight-line flight distance is about 140.8 miles (226.6 km).
- For a round trip, plan for roughly 06h 22m 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 11m.
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 Madison County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Areas Of Fog
Chance Light Rain then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between West Yellowstone and Helena.
Turn-by-Turn Driving Directions
Step-by-step road directions between West Yellowstone and Helena.
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1
Start on Electric Street
12 m · 6 sec · Electric Street
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2
Turn right onto Firehole Avenue
1182 ft · 48 sec · Firehole Avenue
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3
Turn left onto Canyon Street
917 ft · 28 sec · Canyon Street
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4
Continue on Gallatin Road
8.2 mi · 9 min · Gallatin Road
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5
Turn left onto Hebgen Lake Road
62.7 mi · 1 hr 9 min · Hebgen Lake Road
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6
Turn straight
137 m · 15 sec
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7
Continue straight
109.4 mi · 2 hr 6 min
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8
Turn left onto North Montana Avenue
146 m · 18 sec · North Montana Avenue
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9
Turn right onto 11th Avenue
1.3 km · 2 min · 11th Avenue
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10
Turn right onto Cruse Avenue
50 m · 6 sec · Cruse Avenue
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11
Arrive at your destination
0 m · 1 sec · Cruse Avenue
Car Route Details
A richer read on the saved driving route between West Yellowstone and Helena.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Hebgen Lake Road
Continue straight
109 mi · 02h 06m
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.
Areas Of Fog leaving West Yellowstone and Chance Light Rain then Chance Showers And Thunderstorms near Helena.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from West Yellowstone to Helena?
The road trip is about 181.6 miles (292.3 km) and usually takes 03h 11m 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?
Ennis is a useful midpoint, sitting about 90.8 miles from West Yellowstone and 90.8 miles from Helena.
How much longer is the road route than the straight-line distance?
The direct path is about 140.8 miles (226.6 km), while the road route adds roughly 40.8 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 10:38 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.95 one way or $49.91 round trip. Estimated CO2 is about 57 kg one way.
What should you check before leaving?
Before you leave, expect Areas Of Fog around West Yellowstone and Chance Light Rain then Chance Showers And Thunderstorms near Helena.
Stop Ideas Near Ennis
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 Ennis.
Bozeman, MT
Butte, MT
Livingston, MT
Flight Path Map
This map shows the direct air route between West Yellowstone and Helena. Straight-line distance: 140.78 mi (226.57 km).
#1 West Yellowstone
Town of the United States
| Population | 1,372 |
| Coordinates | 44.6621500, -111.1041100 |
| Altitude | 2031 |
| Country | United States |
#2 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 |
End: Cruse Avenue (-112.036062, 46.592722)
Estimated Travel Time
Distance: 292 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 03m |
| 40 mph (64.37 km/h) | 04h 32m |
| 50 mph (80.47 km/h) | 03h 37m |
| 60 mph (96.56 km/h) | 03h 01m |
| 70 mph (112.65 km/h) | 02h 35m |
| 80 mph (129 km/h) | 02h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $24.95 | $49.91 |
| Mid-grade | $4.23 | $27.12 | $54.24 |
| Premium | $4.55 | $29.16 | $58.32 |
| Diesel | $5.41 | $34.69 | $69.38 |
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 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.