How far is Eureka, MT from Billings, MT?
The driving distance from Eureka, MT to Billings, MT is about 491.1 miles (790.3 km), with a travel time of about 08h 20m by car.
- The straight-line flight distance is about 373.9 miles (601.7 km).
- For a round trip, plan for roughly 16h 40m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 08h 20m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 the county seat of Powell County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Light Rain then Showers And Thunderstorms
Mostly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Eureka and Billings.
Turn-by-Turn Driving Directions
Step-by-step road directions between Eureka and Billings.
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1
Start on 2nd Street
30 m · 6 sec · 2nd Street
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2
Turn right onto Dewey Avenue
600 ft · 21 sec · Dewey Avenue
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3
Continue on Riverside Drive
50.1 mi · 56 min · Riverside Drive
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4
Turn right onto Parkhill Drive
110 m · 21 sec · Parkhill Drive
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5
Turn left onto West 3rd Street
972 ft · 48 sec · West 3rd Street
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6
Turn left onto Karrow Avenue
111 m · 14 sec · Karrow Avenue
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7
Turn right onto West 2nd Street
1.2 km · 2 min · West 2nd Street
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8
Turn right onto Spokane Avenue
1.7 mi · 4 min · Spokane Avenue
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9
Continue on US 93 South
3.2 mi · 4 min · US 93 South
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10
Continue on US 93 North
6.8 mi · 8 min · US 93 North
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11
Turn left onto West Reserve Drive
3.5 mi · 6 min · West Reserve Drive
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12
Turn right onto Helena Flats Road
1.1 mi · 2 min · Helena Flats Road
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13
Turn left
1.1 mi · 2 min
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14
Continue straight
14.7 mi · 17 min
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15
Turn left
91.1 mi · 1 hr 44 min
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16
Turn left
23.8 mi · 26 min
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17
Turn right onto State Highway 141
32.5 mi · 35 min · State Highway 141
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18
Turn sharp right
12.9 mi · 14 min
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19
Turn left
2539 ft · 43 sec
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20
Continue straight
802 ft · 14 sec
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21
Take the ramp straight
1.4 km · 2 min
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22
Merge slight left
45 mi · 42 min
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23
Keep slight right
110.8 mi · 1 hr 51 min
-
24
Continue straight
6.9 mi · 6 min
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25
Continue straight
105.3 mi · 1 hr 45 min
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26
Take the exit slight right toward I 90 Business: West Billings
1948 ft · 48 sec
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27
Keep slight left to continue on I 90 Business: City Center
1.7 mi · 3 min
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28
Keep slight left to continue on Montana Avenue
1.3 mi · 2 min · Montana Avenue
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29
Continue on Montana Avenue
1.4 km · 3 min · Montana Avenue
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30
Arrive at your destination
0 m · 1 sec · Montana Avenue
Car Route Details
A richer read on the saved driving route between Eureka and Billings.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
State Highway 141
Keep slight right
111 mi · 01h 51m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Chance Light Rain then Showers And Thunderstorms leaving Eureka and Mostly Sunny then Chance Showers And Thunderstorms near Billings.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Eureka to Billings?
The road trip is about 491.1 miles (790.3 km) and usually takes 08h 20m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Deer Lodge is a useful midpoint, sitting about 258.5 miles from Eureka and 232.6 miles from Billings.
How much longer is the road route than the straight-line distance?
The direct path is about 373.9 miles (601.7 km), while the road route adds roughly 117.2 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 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $67.47 one way or $134.93 round trip. Estimated CO2 is about 154 kg one way.
What should you check before leaving?
Before you leave, expect Chance Light Rain then Showers And Thunderstorms around Eureka and Mostly Sunny then Chance Showers And Thunderstorms near Billings.
Stop Ideas Near Deer Lodge
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 Deer Lodge.
Butte, MT
Missoula, MT
Flight Path Map
This map shows the direct air route between Eureka and Billings. Straight-line distance: 373.87 mi (601.69 km).
#1 Eureka
Town in Lincoln County, Montana, United States
| Population | 1,445 |
| Coordinates | 48.8799600, -115.0535000 |
| Altitude | 787 |
| 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: 790 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 16h 21m |
| 40 mph (64.37 km/h) | 12h 16m |
| 50 mph (80.47 km/h) | 09h 49m |
| 60 mph (96.56 km/h) | 08h 11m |
| 70 mph (112.65 km/h) | 07h 00m |
| 80 mph (129 km/h) | 06h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $67.47 | $134.93 |
| Mid-grade | $4.23 | $73.32 | $146.65 |
| Premium | $4.55 | $78.83 | $157.67 |
| Diesel | $5.41 | $93.79 | $187.58 |
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.