How far is East Helena, MT from Billings, MT?
The driving distance from East Helena, MT to Billings, MT is about 227.3 miles (365.8 km), with a travel time of about 03h 40m by car.
- The straight-line flight distance is about 172.6 miles (277.7 km).
- For a round trip, plan for roughly 07h 21m 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 40m.
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 and the county seat of Park County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between East Helena and Billings.
Turn-by-Turn Driving Directions
Step-by-step road directions between East Helena and Billings.
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1
Start on East Main Street
81 m · 9 sec · East Main Street
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2
Turn right onto South Montana Avenue
828 ft · 36 sec · South Montana Avenue
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3
Turn left
2212 ft · 48 sec
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4
Continue straight
1678 ft · 26 sec
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5
Continue straight
30.2 mi · 34 min
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6
Continue straight
2.3 mi · 2 min
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7
Continue straight
1.2 mi · 1 min
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8
Continue straight
1.4 mi · 2 min
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9
Continue straight
22.7 mi · 24 min
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10
Take the exit left toward I 90 East: Billings
1372 ft · 34 sec
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11
Merge slight left
170 mi · 2 hr 50 min
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12
Take the exit slight right toward I 90 Business: West Billings
1948 ft · 48 sec
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13
Keep slight left to continue on I 90 Business: City Center
1.7 mi · 3 min
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14
Keep slight left to continue on Montana Avenue
1.3 mi · 2 min · Montana Avenue
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15
Continue on Montana Avenue
1.4 km · 3 min · Montana Avenue
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16
Arrive at your destination
0 m · 1 sec · Montana Avenue
Car Route Details
A richer read on the saved driving route between East Helena and Billings.
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
170 mi · 02h 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.
Mostly Sunny leaving East Helena and Mostly Cloudy near Billings.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from East Helena to Billings?
The road trip is about 227.3 miles (365.8 km) and usually takes 03h 40m 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?
Livingston is a useful midpoint, sitting about 116.4 miles from East Helena and 110.9 miles from Billings.
How much longer is the road route than the straight-line distance?
The direct path is about 172.6 miles (277.7 km), while the road route adds roughly 54.7 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 9:38 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.22 one way or $62.44 round trip. Estimated CO2 is about 71.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around East Helena and Mostly Cloudy near Billings.
Stop Ideas Near Livingston
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 Livingston.
Livingston, MT
Bozeman, MT
Flight Path Map
This map shows the direct air route between East Helena and Billings. Straight-line distance: 172.57 mi (277.72 km).
#1 East Helena
Town of the United States
| Population | 2,130 |
| Coordinates | 46.5896600, -111.9155500 |
| Altitude | 1185 |
| Country | United States |
#2 Billings
The most populous city in Montana.
| Population | 117,445 |
| Coordinates | 45.7832900, -108.5006900 |
| Altitude | 952 |
| Country | United States |
End: Montana Avenue (-108.500696, 45.783296)
Estimated Travel Time
Distance: 366 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 34m |
| 40 mph (64.37 km/h) | 05h 41m |
| 50 mph (80.47 km/h) | 04h 32m |
| 60 mph (96.56 km/h) | 03h 47m |
| 70 mph (112.65 km/h) | 03h 14m |
| 80 mph (129 km/h) | 02h 50m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $31.22 | $62.44 |
| Mid-grade | $4.23 | $33.93 | $67.87 |
| Premium | $4.55 | $36.48 | $72.97 |
| Diesel | $5.41 | $43.40 | $86.81 |
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 · Jun 09, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.