How far is Billings, MT from Big Sky, MT?
The driving distance from Billings, MT to Big Sky, MT is about 192.2 miles (309.3 km), with a travel time of about 03h 32m by car.
- The straight-line flight distance is about 143 miles (230.1 km).
- For a round trip, plan for roughly 07h 04m 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 32m.
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 in and county seat of Sweet Grass 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 Rain And Snow then Snow Showers Likely
Driving Route Map
The map below follows the saved road route between Billings and Big Sky.
Turn-by-Turn Driving Directions
Step-by-step road directions between Billings and Big Sky.
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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
25.7 mi · 26 min
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11
Take the exit slight right toward MT 205
1505 ft · 39 sec
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12
Turn left onto North 7th Avenue
1.3 mi · 2 min · North 7th Avenue
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13
At the end of the road, turn right onto West Main Street
1.7 mi · 4 min · West Main Street
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14
Continue on Huffine Lane
5.3 mi · 8 min · Huffine Lane
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15
Turn left onto Gallatin Road
33.9 mi · 41 min · Gallatin Road
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16
Turn right onto Lone Mountain Trail
7.1 mi · 11 min · Lone Mountain Trail
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17
Turn left onto Lone Moose Drive
61 m · 7 sec · Lone Moose Drive
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18
Keep slight right to continue on Access
156 m · 23 sec · Access
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19
Arrive at your destination
0 m · 1 sec · Access
Car Route Details
A richer read on the saved driving route between Billings and Big Sky.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Butte
Merge slight right
105 mi · 01h 43m
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 then Chance Showers And Thunderstorms leaving Billings and Chance Rain And Snow then Snow Showers Likely near Big Sky.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Billings to Big Sky?
The road trip is about 192.2 miles (309.3 km) and usually takes 03h 32m 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?
Big Timber is a useful midpoint, sitting about 95.9 miles from Billings and 96.3 miles from Big Sky.
How much longer is the road route than the straight-line distance?
The direct path is about 143 miles (230.1 km), while the road route adds roughly 49.2 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 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 9:56 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.39 one way or $52.79 round trip. Estimated CO2 is about 60.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Billings and Chance Rain And Snow then Snow Showers Likely near Big Sky.
Stop Ideas Near Big Timber
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 Big Timber.
Livingston, MT
Bozeman, MT
Billings, MT
Flight Path Map
This map shows the direct air route between Billings and Big Sky. Straight-line distance: 142.99 mi (230.12 km).
#1 Billings
The most populous city in Montana.
| Population | 117,445 |
| Coordinates | 45.7832900, -108.5006900 |
| Altitude | 952 |
| Country | United States |
#2 Big Sky
Census designated place
| Population | 2,308 |
| Coordinates | 45.2846500, -111.3682900 |
| Altitude | 2200 |
| Country | United States |
End: Big Sky (-111.36829, 45.28465)
Estimated Travel Time
Distance: 309 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 24m |
| 40 mph (64.37 km/h) | 04h 48m |
| 50 mph (80.47 km/h) | 03h 50m |
| 60 mph (96.56 km/h) | 03h 12m |
| 70 mph (112.65 km/h) | 02h 44m |
| 80 mph (129 km/h) | 02h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $26.39 | $52.79 |
| Mid-grade | $4.23 | $28.69 | $57.37 |
| Premium | $4.55 | $30.84 | $61.68 |
| Diesel | $5.41 | $36.69 | $73.39 |
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.