How far is Billings, MT from Eureka, MT?
The driving distance from Billings, MT to Eureka, MT is about 514.4 miles (827.9 km), with a travel time of about 09h 12m by car.
- The straight-line flight distance is about 373.9 miles (601.7 km).
- For a round trip, plan for roughly 18h 25m 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 09h 12m.
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.
Mostly Sunny then Chance Showers And Thunderstorms
Chance Light Rain then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Billings and Eureka.
Turn-by-Turn Driving Directions
Step-by-step road directions between Billings and Eureka.
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1
Start on Montana Avenue
589 ft · 25 sec · Montana Avenue
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2
Turn left onto North 23rd Street
114 m · 22 sec · North 23rd Street
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3
Turn left onto 1st Avenue North
1.5 km · 3 min · 1st Avenue North
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4
Turn left onto Division Street
136 m · 10 sec · Division Street
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5
Continue on Montana Avenue
1.3 mi · 2 min · Montana Avenue
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6
Continue on Laurel Road
1.4 mi · 2 min · Laurel Road
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7
Keep slight right to continue on Butte, I 90 West
1963 ft · 48 sec
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8
Merge slight right
105.4 mi · 1 hr 43 min
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9
Continue straight
7 mi · 7 min
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10
Continue straight
113.4 mi · 1 hr 54 min
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11
Keep slight left to continue on I 90 West: Missoula
42.6 mi · 40 min
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12
Take the exit slight right toward US 12 East: Helena, Garrison
1.2 mi · 2 min
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13
At the end of the road, turn right
12.9 mi · 14 min
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14
Turn sharp left
32.5 mi · 35 min
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15
At the end of the road, turn left
23.8 mi · 26 min
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16
Turn right
91.1 mi · 1 hr 44 min
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17
At the end of the road, turn right
1821 ft · 39 sec
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18
Turn left
6.9 mi · 9 min
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19
Turn right onto US 93 South
4.8 mi · 6 min · US 93 South
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20
Turn left onto Kalispell Bypass
1305 ft · 25 sec · Kalispell Bypass
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21
Enter the roundabout and take exit 1 toward Kalispell Bypass
46 m · 2 sec · Kalispell Bypass
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22
Exit the roundabout onto Kalispell Bypass
1.6 km · 1 min · Kalispell Bypass
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23
Enter the roundabout and take exit 2 toward Kalispell Bypass
52 m · 2 sec · Kalispell Bypass
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24
Exit the roundabout onto Kalispell Bypass
3.5 mi · 4 min · Kalispell Bypass
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25
Take the exit slight right toward MT 424
1738 ft · 55 sec
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26
Turn left onto Three Mile Drive
1.1 mi · 2 min · Three Mile Drive
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27
Turn straight onto Farm To Market Road
11.6 mi · 16 min · Farm To Market Road
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28
Turn right onto Lodgepole Road
2.4 mi · 3 min · Lodgepole Road
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29
Continue on Twin Bridges Road
1.3 mi · 5 min · Twin Bridges Road
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30
At the end of the road, turn left
46.5 mi · 51 min
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31
Turn left onto 2nd Street
30 m · 4 sec · 2nd Street
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32
Arrive at your destination
0 m · 1 sec · 2nd Street
Car Route Details
A richer read on the saved driving route between Billings and Eureka.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Butte
Continue straight
113 mi · 01h 54m
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.
Mostly Sunny then Chance Showers And Thunderstorms leaving Billings and Chance Light Rain then Showers And Thunderstorms near Eureka.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Billings to Eureka?
The road trip is about 514.4 miles (827.9 km) and usually takes 09h 12m 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 256.8 miles from Billings and 257.6 miles from Eureka.
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 140.5 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 $70.66 one way or $141.32 round trip. Estimated CO2 is about 161.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Billings and Chance Light Rain then Showers And Thunderstorms near Eureka.
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 Billings and Eureka. Straight-line distance: 373.87 mi (601.69 km).
#1 Billings
The most populous city in Montana.
| Population | 117,445 |
| Coordinates | 45.7832900, -108.5006900 |
| Altitude | 952 |
| Country | United States |
#2 Eureka
Town in Lincoln County, Montana, United States
| Population | 1,445 |
| Coordinates | 48.8799600, -115.0535000 |
| Altitude | 787 |
| Country | United States |
End: Eureka (-115.0535, 48.87996)
Estimated Travel Time
Distance: 828 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 17h 08m |
| 40 mph (64.37 km/h) | 12h 51m |
| 50 mph (80.47 km/h) | 10h 17m |
| 60 mph (96.56 km/h) | 08h 34m |
| 70 mph (112.65 km/h) | 07h 20m |
| 80 mph (129 km/h) | 06h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $70.66 | $141.32 |
| Mid-grade | $4.23 | $76.79 | $153.59 |
| Premium | $4.55 | $82.56 | $165.13 |
| Diesel | $5.41 | $98.23 | $196.46 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.